diff --git a/README.md b/README.md
index 3a2357d0..2dfa1246 100644
--- a/README.md
+++ b/README.md
@@ -3,3 +3,4 @@
  
 ## Disclaimer
   版权归原作者所有，欢迎自由转载-非商用-非衍生-保持署名和链接。
+  此笔记是本人辛辛苦苦一个个字码出来的，转载请保留出处。
diff --git a/day26/resource/chat_socket_client/.settings/org.eclipse.jdt.core.prefs b/day26/resource/chat_socket_client/.settings/org.eclipse.jdt.core.prefs
deleted file mode 100644
index 954c350c..00000000
--- a/day26/resource/chat_socket_client/.settings/org.eclipse.jdt.core.prefs
+++ /dev/null
@@ -1,12 +0,0 @@
-#Wed Oct 24 13:13:24 CST 2012
-eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
-org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.6
-org.eclipse.jdt.core.compiler.debug.lineNumber=generate
-org.eclipse.jdt.core.compiler.debug.localVariable=generate
-org.eclipse.jdt.core.compiler.debug.sourceFile=generate
-org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
-org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.6
diff --git a/day26/resource/chat_socket_client/Images/socket.jpg b/day26/resource/chat_socket_client/Images/socket.jpg
deleted file mode 100644
index 8e4a9b58..00000000
Binary files a/day26/resource/chat_socket_client/Images/socket.jpg and /dev/null differ
diff --git a/day26/resource/chat_socket_client/bin/com/elient/Client.class b/day26/resource/chat_socket_client/bin/com/elient/Client.class
deleted file mode 100644
index 9401f745..00000000
Binary files a/day26/resource/chat_socket_client/bin/com/elient/Client.class and /dev/null differ
diff --git a/day26/resource/chat_socket_client/bin/com/elient/Client_chatFrame$1.class b/day26/resource/chat_socket_client/bin/com/elient/Client_chatFrame$1.class
deleted file mode 100644
index ec44ce0e..00000000
Binary files a/day26/resource/chat_socket_client/bin/com/elient/Client_chatFrame$1.class and /dev/null differ
diff --git a/day26/resource/chat_socket_client/bin/com/elient/Client_chatFrame.class b/day26/resource/chat_socket_client/bin/com/elient/Client_chatFrame.class
deleted file mode 100644
index aa5d044e..00000000
Binary files a/day26/resource/chat_socket_client/bin/com/elient/Client_chatFrame.class and /dev/null differ
diff --git a/day26/resource/chat_socket_client/bin/com/elient/Client_enterFrame$1.class b/day26/resource/chat_socket_client/bin/com/elient/Client_enterFrame$1.class
deleted file mode 100644
index 15d7a403..00000000
Binary files a/day26/resource/chat_socket_client/bin/com/elient/Client_enterFrame$1.class and /dev/null differ
diff --git a/day26/resource/chat_socket_client/bin/com/elient/Client_enterFrame.class b/day26/resource/chat_socket_client/bin/com/elient/Client_enterFrame.class
deleted file mode 100644
index 823287c4..00000000
Binary files a/day26/resource/chat_socket_client/bin/com/elient/Client_enterFrame.class and /dev/null differ
diff --git a/day26/resource/chat_socket_client/bin/com/elient/Client_singleFrame$1.class b/day26/resource/chat_socket_client/bin/com/elient/Client_singleFrame$1.class
deleted file mode 100644
index f455c196..00000000
Binary files a/day26/resource/chat_socket_client/bin/com/elient/Client_singleFrame$1.class and /dev/null differ
diff --git a/day26/resource/chat_socket_client/bin/com/elient/Client_singleFrame.class b/day26/resource/chat_socket_client/bin/com/elient/Client_singleFrame.class
deleted file mode 100644
index e36057b4..00000000
Binary files a/day26/resource/chat_socket_client/bin/com/elient/Client_singleFrame.class and /dev/null differ
diff --git a/day26/resource/chat_socket_client/bin/com/elient/WinCenter.class b/day26/resource/chat_socket_client/bin/com/elient/WinCenter.class
deleted file mode 100644
index 714e5a31..00000000
Binary files a/day26/resource/chat_socket_client/bin/com/elient/WinCenter.class and /dev/null differ
diff --git a/day26/resource/chat_socket_client/bin/com/elient/socket.jpg b/day26/resource/chat_socket_client/bin/com/elient/socket.jpg
deleted file mode 100644
index 8e4a9b58..00000000
Binary files a/day26/resource/chat_socket_client/bin/com/elient/socket.jpg and /dev/null differ
diff --git a/day26/resource/chat_socket_client/src/com/elient/Client.java b/day26/resource/chat_socket_client/src/com/elient/Client.java
deleted file mode 100644
index 0d82d9ee..00000000
--- a/day26/resource/chat_socket_client/src/com/elient/Client.java
+++ /dev/null
@@ -1,168 +0,0 @@
-package com.elient;
-
-import java.io.DataInputStream;
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.net.Socket;
-import java.net.UnknownHostException;
-import java.util.ArrayList;
-import java.util.HashMap;
-import java.util.List;
-import java.util.Map;
-
-
-public class Client extends Thread{
-
-	public Socket c_socket ;
-	private Client_chatFrame c_chatFrame;
-	private Client_enterFrame c_enterFrame;
-	private Client_singleFrame c_singleFrame;
-	public  DataInputStream dis = null;
-	public DataOutputStream dos = null;
-	private boolean flag_exit = false;
-	
-	private int threadID;
-	
-	public Map<String, Client_singleFrame> c_singleFrames;
-	public  List<String> username_online;
-	public  List<Integer> clientuserid;
-	public String username = null;
-	public String chat_re;
-	//getter, setter����
-	public Client_chatFrame getC_chatFrame() {
-		return c_chatFrame;
-	}
-	public Client_singleFrame getC_singlFrame() {
-		return c_singleFrame;
-	}
-	public void setC_singlFrame(Client_singleFrame c_singlFrame) {
-		this.c_singleFrame = c_singlFrame;
-	}
-	public void setC_chatFrame(Client_chatFrame c_chatFrame) {
-		this.c_chatFrame = c_chatFrame;
-	}
-	public Client_enterFrame getC_enterFrame() {
-		return c_enterFrame;
-	}
-	public void setC_enterFrame(Client_enterFrame c_enterFrame) {
-		this.c_enterFrame = c_enterFrame;
-	}
-	
-	public int getThreadID() {
-		return threadID;
-	}
-	public void setThreadID(int threadID) {
-		this.threadID = threadID;
-	}
-	public Client(){
-		c_singleFrames = new HashMap<String, Client_singleFrame>();
-		username_online = new ArrayList<String>();
-		clientuserid = new ArrayList<Integer>();
-//		signlechatuse = new ArrayList<String>();
-	}
-	
-	public static void main(String[] args) {
-		Client client = new Client();
-		Client_enterFrame c_enterFrame = new Client_enterFrame(client);
-		client.setC_enterFrame(c_enterFrame);
-		c_enterFrame.setVisible(true);
-	}
-	
-	public String login(String username, String hostIp, String hostPort) {
-		this.username = username;
-		String login_mess = null;
-		try {
-			c_socket = new Socket(hostIp, Integer.parseInt(hostPort));
-		} catch (NumberFormatException e) {
-			login_mess = "���ӵķ������˿ں�portΪ����,ȡֵ��ΧΪ��1024<port<65535";
-			return login_mess;
-		} catch (UnknownHostException e) {
-			login_mess = "������ַ����";
-			return login_mess;
-		} catch (IOException e) {
-			login_mess = "���ӷ�����ʧ�ܣ����Ժ�����";
-			return login_mess;
-		}
-		return "true";
-	}
-	public void showChatFrame(String username) {
-		getDataInit();
-		c_chatFrame = new Client_chatFrame(this,username);
-		c_chatFrame.setVisible(true);
-		flag_exit = true;
-		this.start();
-		
-	}
-	private void getDataInit() {
-		try {
-			dis = new DataInputStream(c_socket.getInputStream());
-			dos = new DataOutputStream(c_socket.getOutputStream());
-		} catch (IOException e) {
-			e.printStackTrace();
-		}
-		
-	}
-
-	public void run() {
-		while(flag_exit){
-			try {
-				chat_re = dis.readUTF();
-			} catch (IOException e) {
-				flag_exit = false;
-				if(!chat_re.contains("@serverexit")){
-					chat_re = null;
-				}
-			}
-			if(chat_re != null){
-				if(chat_re.contains("@clientThread")){
-					int local = chat_re.indexOf("@clientThread");
-					setThreadID(Integer.parseInt(chat_re.substring(0, local)));
-					try {
-						dos.writeUTF(username + "@login" + getThreadID() + "@login");
-					} catch (IOException e) {
-						e.printStackTrace();
-					}
-				}else{
-					if(chat_re.contains("@userlist")){
-						c_chatFrame.setDisUsers(chat_re);
-					}else{
-						if(chat_re.contains("@chat")){
-							c_chatFrame.setDisMess(chat_re);
-						}else{
-							if(chat_re.contains("@serverexit")){
-								c_chatFrame.closeClient();
-							}else{
-								if(chat_re.contains("@single")){
-									c_chatFrame.setSingleFrame(chat_re);
-								}
-							}
-						}
-					}
-				}
-			}
-		}
-	}
-	public void transMess(String mess) {
-		try {
-			dos.writeUTF(username  + "@chat" + getThreadID() + "@chat"+ mess + "@chat");
-		} catch (IOException e) {
-			e.printStackTrace();
-		}
-	}
-	public void exitChat() {
-		try {
-			dos.writeUTF(username + "@exit" + getThreadID() + "@exit");
-			flag_exit = false;
-			System.exit(0);
-		} catch (IOException e) {
-			e.printStackTrace();
-		}
-	}
-	public void exitLogin() {
-		System.exit(0);
-	}
-	public void exitClient() {
-		flag_exit = false;
-		System.exit(0);
-	}
-}
diff --git a/day26/resource/chat_socket_client/src/com/elient/Client_chatFrame.java b/day26/resource/chat_socket_client/src/com/elient/Client_chatFrame.java
deleted file mode 100644
index 46a7b0e8..00000000
--- a/day26/resource/chat_socket_client/src/com/elient/Client_chatFrame.java
+++ /dev/null
@@ -1,347 +0,0 @@
-package com.elient;
-
-import java.awt.Font;
-import java.awt.Toolkit;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.KeyEvent;
-import java.awt.event.KeyListener;
-import java.awt.event.WindowAdapter;
-import java.awt.event.WindowEvent;
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.swing.BorderFactory;
-import javax.swing.JButton;
-import javax.swing.JFrame;
-import javax.swing.JList;
-import javax.swing.JOptionPane;
-import javax.swing.JScrollPane;
-import javax.swing.JTextArea;
-import javax.swing.JTextField;
-import javax.swing.ListModel;
-import javax.swing.ListSelectionModel;
-import javax.swing.UIManager;
-import javax.swing.UnsupportedLookAndFeelException;
-import javax.swing.event.ListSelectionEvent;
-import javax.swing.event.ListSelectionListener;
-
-public class Client_chatFrame extends JFrame implements ActionListener,
-		KeyListener, ListSelectionListener {
-	public Client_chatFrame(Client client, String title) {
-		this.client = client;
-		try {
-			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
-		} catch (ClassNotFoundException e) {
-			e.printStackTrace();
-		} catch (InstantiationException e) {
-			e.printStackTrace();
-		} catch (IllegalAccessException e) {
-			e.printStackTrace();
-		} catch (UnsupportedLookAndFeelException e) {
-			e.printStackTrace();
-		}
-		setIconImage(Toolkit.getDefaultToolkit().getImage("Images/socket.jpg"));
-		setTitle("\u804A\u5929\u5BA4" + "  " + title);
-		setSize(450, 325);
-		WinCenter.center(this);
-		setResizable(false);
-		addWindowListener(new WindowAdapter() {
-			@Override
-			public void windowClosing(WindowEvent arg0) {
-				jbt_exit.doClick();
-			}
-		});
-		getContentPane().setLayout(null);
-
-		JScrollPane scrollPane = new JScrollPane();
-		scrollPane.setBorder(BorderFactory.createTitledBorder("������Ϣ"));
-		scrollPane.setBounds(10, 10, 283, 167);
-		scrollPane.setWheelScrollingEnabled(true);
-		getContentPane().add(scrollPane);
-
-		jta_disMess = new JTextArea();
-		jta_disMess.setEditable(false);
-		scrollPane.setViewportView(jta_disMess);
-
-		jtf_inputMess = new JTextField();
-		jtf_inputMess.addKeyListener(this);
-		jtf_inputMess.setBounds(10, 242, 192, 32);
-		getContentPane().add(jtf_inputMess);
-		jtf_inputMess.setColumns(10);
-
-		jbt_trans = new JButton("\u53D1  \u9001");
-		jbt_trans.setFont(new Font("����", Font.PLAIN, 14));
-		jbt_trans.setBounds(212, 241, 93, 32);
-		jbt_trans.addActionListener(this);
-		getContentPane().add(jbt_trans);
-
-		jbt_clear = new JButton("\u6E05\u9664\u804A\u5929\u8BB0\u5F55");
-		jbt_clear.setFont(new Font("����", Font.PLAIN, 14));
-		jbt_clear.setBounds(158, 187, 135, 37);
-		jbt_clear.addActionListener(this);
-		getContentPane().add(jbt_clear);
-
-		jbt_exit = new JButton("\u9000\u51FA\u804A\u5929\u5BA4");
-		jbt_exit.setFont(new Font("����", Font.PLAIN, 14));
-		jbt_exit.setBounds(20, 189, 128, 37);
-		jbt_exit.addActionListener(this);
-		getContentPane().add(jbt_exit);
-
-		scrollPane_1 = new JScrollPane();
-		scrollPane_1.setBorder(BorderFactory.createTitledBorder("�����û�"));
-		scrollPane_1.setBounds(303, 10, 128, 214);
-		getContentPane().add(scrollPane_1);
-
-		jlt_disUsers = new JList();
-		jlt_disUsers.setVisibleRowCount(4);
-		jlt_disUsers.setSelectedIndex(0);
-		jlt_disUsers
-				.setSelectionMode(ListSelectionModel.SINGLE_INTERVAL_SELECTION);
-		jlt_disUsers.addListSelectionListener(this);
-		scrollPane_1.setViewportView(jlt_disUsers);
-
-		jbt_singlChat = new JButton("\u5355\u4EBA\u804A\u5929");
-		jbt_singlChat.setBounds(315, 241, 116, 32);
-		jbt_singlChat.addActionListener(this);
-		getContentPane().add(jbt_singlChat);
-	}
-
-	/**
-	 * 
-	 */
-	private static final long serialVersionUID = 1L;
-	private JTextField jtf_inputMess;
-	private JTextArea jta_disMess;
-	private JButton jbt_trans;
-	private JButton jbt_clear;
-	private JButton jbt_exit;
-	private JList jlt_disUsers;
-	private JButton jbt_singlChat;
-	private JScrollPane scrollPane_1;
-	private Client client;
-
-	@Override
-	public void actionPerformed(ActionEvent e) {
-		if (e.getSource() == jbt_clear) {
-			jta_disMess.setText("");
-		}
-		if (e.getSource() == jbt_trans) {
-			String mess = jtf_inputMess.getText();
-			mess.trim();
-			jtf_inputMess.setText("");
-			if (mess.equals("")) {
-				JOptionPane.showMessageDialog(this, "���ܷ��Ϳ���Ϣ");
-				jtf_inputMess.setText("");
-			} else {
-				client.transMess(mess);
-			}
-		}
-		if (e.getSource() == jbt_exit) {
-			if (JOptionPane.OK_OPTION == JOptionPane.showConfirmDialog(this,
-					"�Ƿ�ȷ��Ҫ�˳������ң�", "��ʾ", JOptionPane.OK_CANCEL_OPTION)) {
-				this.setVisible(false);
-				client.exitChat();
-				System.exit(0);
-			}
-		}
-		if (e.getSource() == jbt_singlChat) {
-			String user_names = (String) jlt_disUsers.getSelectedValue();
-			if (user_names == null) {
-				JOptionPane.showMessageDialog(this, "��δѡ���������\n��ѡ��Ҫ��������Ķ���");
-			} else {
-				if (!client.c_singleFrames.containsKey(user_names)) {
-					createSingleChatFrame(user_names);
-				} else {
-					client.c_singleFrames.get(user_names)
-							.setFocusableWindowState(true);
-				}
-			}
-		}
-	}
-
-	@Override
-	public void keyPressed(KeyEvent arg0) {
-		if (arg0.getKeyCode() == KeyEvent.VK_ENTER) {
-			if (arg0.getSource() == jtf_inputMess) {
-				jbt_trans.doClick();
-			}
-		}
-	}
-
-	@Override
-	public void keyReleased(KeyEvent arg0) {
-	}
-
-	@Override
-	public void keyTyped(KeyEvent arg0) {
-	}
-
-	public void setDisMess(String substring) {
-		int local = substring.indexOf("@chat");
-		jta_disMess.append(substring.substring(0, local) + "\n");
-		jta_disMess.setCaretPosition(jta_disMess.getText().length());
-	}
-
-	public void setDisUsers(String chat_re) {
-		String[] infos = chat_re.split("@userlist");
-		String[] info = new String[infos.length / 2];
-		for (int i = 1; i < infos.length; i++) {
-			int id_user = 0;
-			try {
-				id_user = Integer.parseInt(infos[i]);
-				if (client.getThreadID() == id_user) {
-					if (!client.username.equals(infos[i - 1])) {
-						JOptionPane.showMessageDialog(this,
-								"������ͬ�����û���¼�����������û�����������˱��");
-						client.username = infos[i - 1];
-						this.setTitle("������    " + client.username);
-						break;
-					} else {
-						break;
-					}
-				} else {
-					i++;
-				}
-			} catch (Exception e) {
-			}
-		}
-		if (infos.length == 2) {
-			String[] s = new String[] {};
-			if (!client.c_singleFrames.isEmpty()) {
-				ListModel list = jlt_disUsers.getModel();
-				for (int i = 0; i < list.getSize(); i++) {
-					if (client.c_singleFrames.get(list.getElementAt(i)) != null) {
-						client.c_singleFrames.get(list.getElementAt(i))
-								.setExitNotify();
-					}
-				}
-			}
-			jlt_disUsers.removeAll();
-			jlt_disUsers.setListData(s);
-		} else {
-			if ((infos.length / 2 - 1) < client.username_online.size()) {
-				// ��������
-				List<String> rec = new ArrayList<String>();
-				int i = 0;
-				for (; i < infos.length; i++) {
-					rec.add(0, infos[i++]);
-				}
-				for (i = 0; i < client.username_online.size(); i++) {
-					if (!rec.contains(client.username_online.get(i))) {
-						break;
-					}
-				}
-				String name = client.username_online.get(i);
-				client.username_online.remove(i);
-				try {
-					client.clientuserid.remove(i);
-				} catch (Exception e) {
-					e.printStackTrace();
-				}
-
-				if (client.c_singleFrames.containsKey(name)) {
-					client.c_singleFrames.get(name).closeSingleFrame();
-					client.c_singleFrames.remove(name);
-				}
-			} else {
-				List<Integer> online = new ArrayList<Integer>();
-				for (int i = 0; i < client.username_online.size(); i++) {
-					online.add(0, client.clientuserid.get(i));
-				}
-				if (online.isEmpty()) {
-					for (int i = 1; i < infos.length; i++) {
-						if ((int) Integer.parseInt(infos[i]) != client
-								.getThreadID()) {
-							client.username_online.add(0, infos[i - 1]);
-							client.clientuserid.add(0,
-									Integer.parseInt(infos[i]));
-						}
-						i++;
-					}
-				} else {
-					for (int i = 1; i < infos.length; i++) {
-						if (Integer.parseInt(infos[i]) != client.getThreadID()) {
-							if (!online.contains(Integer.parseInt(infos[i]))) {
-								client.username_online.add(0, infos[i - 1]);
-								client.clientuserid.add(0,
-										Integer.parseInt(infos[i]));
-							} else {
-								String name = client.username_online
-										.get(client.clientuserid
-												.indexOf(Integer
-														.parseInt(infos[i])));
-								if (!name.equals(infos[i - 1])) {
-									if (client.c_singleFrames.containsKey(name)) {
-										Client_singleFrame cf = client.c_singleFrames
-												.get(name);
-										cf.setTitle(name);
-										client.c_singleFrames.remove(name);
-										client.c_singleFrames.put(name, cf);
-										cf.setVisible(false);
-
-									}
-									client.username_online.remove(name);
-									client.clientuserid.remove(new Integer(
-											Integer.parseInt(infos[i])));
-									client.username_online.add(0, infos[i - 1]);
-									client.clientuserid.add(0,
-											Integer.parseInt(infos[i]));
-								}
-							}
-						}
-						i++;
-					}
-				}
-
-			}
-			try {
-				for (int i = 0; i < client.username_online.size(); i++) {
-					info[i] = client.username_online.get(i);
-				}
-
-			} catch (Exception e) {
-			}
-			jlt_disUsers.removeAll();
-			jlt_disUsers.setListData(info);
-		}
-	}
-
-	public void closeClient() {
-		JOptionPane.showMessageDialog(this, "�������ѹر�", "��ʾ",
-				JOptionPane.OK_OPTION);
-		client.exitClient();
-		setVisible(false);
-	}
-
-	@Override
-	public void valueChanged(ListSelectionEvent e) {
-		if (e.getSource() == jlt_disUsers) {
-		}
-	}
-
-	public void createSingleChatFrame(String name) {
-		Client_singleFrame c_singlFrame = new Client_singleFrame(client, name);
-		client.c_singleFrames.put(name, c_singlFrame);
-		try {
-			c_singlFrame.userThreadID = client.clientuserid
-					.get(client.username_online.indexOf(name));
-		} catch (Exception e) {
-		}
-
-		c_singlFrame.setVisible(true);
-	}
-
-	public void setSingleFrame(String chat_re) {
-		String[] infos = chat_re.split("@single");
-		try {
-			if (client.c_singleFrames.containsKey(infos[0])) {
-				client.c_singleFrames.get(infos[0]).setDisMess(infos[3]);
-			} else {
-				createSingleChatFrame(infos[0]);
-				client.c_singleFrames.get(infos[0]).setDisMess(infos[3]);
-			}
-		} catch (Exception e) {
-		}
-	}
-}
diff --git a/day26/resource/chat_socket_client/src/com/elient/Client_enterFrame.java b/day26/resource/chat_socket_client/src/com/elient/Client_enterFrame.java
deleted file mode 100644
index 5e9e833d..00000000
--- a/day26/resource/chat_socket_client/src/com/elient/Client_enterFrame.java
+++ /dev/null
@@ -1,163 +0,0 @@
-package com.elient;
-
-import javax.swing.JFrame;
-import javax.swing.JLabel;
-import javax.swing.JOptionPane;
-import javax.swing.UIManager;
-import javax.swing.UnsupportedLookAndFeelException;
-
-import java.awt.Font;
-import java.awt.Toolkit;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.KeyEvent;
-import java.awt.event.KeyListener;
-import java.awt.event.WindowAdapter;
-import java.awt.event.WindowEvent;
-import java.net.Inet4Address;
-import java.net.UnknownHostException;
-
-import javax.swing.JTextField;
-import javax.swing.JButton;
-
-public class Client_enterFrame extends JFrame implements ActionListener, KeyListener{
-	public Client_enterFrame(Client client) {
-		this.client = client;
-		try {
-			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
-		} catch (ClassNotFoundException e1) {
-			e1.printStackTrace();
-		} catch (InstantiationException e1) {
-			e1.printStackTrace();
-		} catch (IllegalAccessException e1) {
-			e1.printStackTrace();
-		} catch (UnsupportedLookAndFeelException e1) {
-			e1.printStackTrace();
-		}
-		setIconImage(Toolkit.getDefaultToolkit().getImage("Images/socket.jpg"));
-		setTitle("\u804A\u5929\u5BA4");
-		getContentPane().setLayout(null);
-		setSize(296, 249);
-		WinCenter.center(this);
-		setResizable(false);
-		addWindowListener(new WindowAdapter() {
-			@Override
-			public void windowClosing(WindowEvent e) {
-				jbt_exit.doClick();
-			}
-		});
-		
-		JLabel lblNewLabel = new JLabel("\u7528\u6237\u540D");
-		lblNewLabel.setFont(new Font("����", Font.PLAIN, 14));
-		lblNewLabel.setBounds(23, 30, 81, 34);
-		getContentPane().add(lblNewLabel);
-		
-		jtf_username = new JTextField();
-		jtf_username.addKeyListener(this);
-		jtf_username.setBounds(114, 30, 143, 34);
-		getContentPane().add(jtf_username);
-		jtf_username.setColumns(10);
-		
-		JLabel lblNewLabel_1 = new JLabel("\u670D\u52A1\u5668\u5730\u5740");
-		lblNewLabel_1.setFont(new Font("����", Font.PLAIN, 14));
-		lblNewLabel_1.setBounds(23, 74, 81, 34);
-		getContentPane().add(lblNewLabel_1);
-		
-		jtf_hostIp = new JTextField();
-		jtf_hostIp.setBounds(114, 74, 143, 34);
-		jtf_hostIp.addKeyListener(this);
-		getContentPane().add(jtf_hostIp);
-		try {
-			String ip = (String)Inet4Address.getLocalHost().getHostAddress();
-			jtf_hostIp.setText(ip);
-		} catch (UnknownHostException e) {
-			e.printStackTrace();
-		}
-		jtf_hostIp.setColumns(10);
-		
-		JLabel lblNewLabel_2 = new JLabel("\u7AEF\u53E3\u53F7");
-		lblNewLabel_2.setFont(new Font("����", Font.PLAIN, 14));
-		lblNewLabel_2.setBounds(23, 118, 81, 34);
-		getContentPane().add(lblNewLabel_2);
-		
-		jtf_hostPort = new JTextField();
-		jtf_hostPort.addKeyListener(this);
-		jtf_hostPort.setBounds(114, 118, 143, 34);
-		getContentPane().add(jtf_hostPort);
-		jtf_hostPort.setText("5000");
-		jtf_hostPort.setColumns(10);
-		
-		jbt_enter = new JButton("\u8FDB\u5165\u804A\u5929\u5BA4");
-		jbt_enter.addActionListener(this);
-		jbt_enter.addKeyListener(this);
-		jbt_enter.setFont(new Font("����", Font.PLAIN, 14));
-		jbt_enter.setBounds(23, 162, 108, 39);
-		getContentPane().add(jbt_enter);
-		
-		jbt_exit = new JButton("\u9000\u51FA\u804A\u5929\u5BA4");
-		jbt_exit.setFont(new Font("����", Font.PLAIN, 14));
-		jbt_exit.setBounds(144, 162, 113, 39);
-		jbt_exit.addActionListener(this);
-		getContentPane().add(jbt_exit);
-	}
-
-	/**
-	 * 
-	 */
-	private static final long serialVersionUID = 1L;
-	private JTextField jtf_username;
-	private JTextField jtf_hostIp;
-	private JTextField jtf_hostPort;
-	private JButton jbt_enter;
-	private JButton jbt_exit;
-	private Client client;
-
-
-	@Override
-	public void actionPerformed(ActionEvent e) {
-		if(e.getSource() == jbt_exit){
-			setVisible(false);
-			client.exitLogin();
-		}
-		if(e.getSource() == jbt_enter){
-			String username = jtf_username.getText();
-			username.trim();
-			String hostIp = jtf_hostIp.getText();
-			hostIp.trim();
-			String hostPort = jtf_hostPort.getText();
-			hostPort.trim();
-			if(!username.equals("")){
-				if(!hostIp.equals("")){
-					if(!hostPort.equals("")){
-						String login_mess = client.login(username, hostIp, hostPort);
-						if(login_mess.equals("true")){
-							this.setVisible(false);
-							client.showChatFrame(username);
-						}else{
-							JOptionPane.showMessageDialog(this, login_mess);
-						}
-					}else{
-						JOptionPane.showMessageDialog(this, "���������Ӷ˿ںŲ���Ϊ�գ�");
-					}
-				}else{
-					JOptionPane.showMessageDialog(this, "��������ַ����Ϊ�գ�");
-				}
-			}else{
-				JOptionPane.showMessageDialog(this, "�û�������Ϊ�գ�");
-			}
-		}
-	}
-
-	@Override
-	public void keyPressed(KeyEvent arg0) {
-		if(arg0.getKeyCode() == KeyEvent.VK_ENTER){
-			jbt_enter.doClick();
-		}
-	}
-
-	@Override
-	public void keyReleased(KeyEvent arg0) {}
-
-	@Override
-	public void keyTyped(KeyEvent arg0) {}
-}
diff --git a/day26/resource/chat_socket_client/src/com/elient/Client_singleFrame.java b/day26/resource/chat_socket_client/src/com/elient/Client_singleFrame.java
deleted file mode 100644
index f1596971..00000000
--- a/day26/resource/chat_socket_client/src/com/elient/Client_singleFrame.java
+++ /dev/null
@@ -1,152 +0,0 @@
-package com.elient;
-
-import java.awt.BorderLayout;
-import java.awt.Component;
-import java.awt.Container;
-import java.awt.Toolkit;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.KeyEvent;
-import java.awt.event.KeyListener;
-import java.awt.event.WindowAdapter;
-import java.awt.event.WindowEvent;
-import java.io.IOException;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-
-import javax.swing.BorderFactory;
-import javax.swing.JButton;
-import javax.swing.JFrame;
-import javax.swing.JOptionPane;
-import javax.swing.JPanel;
-import javax.swing.JScrollPane;
-import javax.swing.JTextArea;
-import javax.swing.JTextField;
-import javax.swing.UIManager;
-import javax.swing.UnsupportedLookAndFeelException;
-
-public class Client_singleFrame extends JFrame implements ActionListener, KeyListener{
-
-	/**
-	 * 
-	 */
-	private static final long serialVersionUID = 1L;
-	private static JTextArea jta_disMess;
-	private JTextField jtf_inputMess;
-	private JButton jbt_trans;
-	
-	public int userThreadID = 0;
-	
-	private Client client;
-	public Client_singleFrame(Client client, String title) {
-		this.client = client;
-		init(title);
-	}
-
-	private void init(String title) {
-		try {
-			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
-		} catch (ClassNotFoundException e1) {
-			e1.printStackTrace();
-		} catch (InstantiationException e1) {
-			e1.printStackTrace();
-		} catch (IllegalAccessException e1) {
-			e1.printStackTrace();
-		} catch (UnsupportedLookAndFeelException e1) {
-			e1.printStackTrace();
-		}
-		setIconImage(Toolkit.getDefaultToolkit().getImage("Images/socket.jpg"));
-		WinCenter.center(this);
-		setTitle(title);
-		setSize(400, 400);
-		setResizable(false);
-		setContentPane(createContentPanel());
-		addWindowListener(new WindowAdapter() {
-			@Override
-			public void windowClosing(WindowEvent e) {
-				closeSingleFrame();
-			}
-		});
-	}
-
-	private Container createContentPanel() {
-		JPanel jp = new JPanel();
-		jp.setBorder(BorderFactory.createTitledBorder("������Ϣ"));
-		jp.setLayout(new BorderLayout());
-		jta_disMess = new JTextArea();
-		jta_disMess.setEditable(false);
-		jp.add(BorderLayout.CENTER, new JScrollPane(jta_disMess));
-		jp.add(BorderLayout.SOUTH, createInput());
-		return jp;
-	}
-
-	private Component createInput() {
-		JPanel jp = new JPanel();
-		jp.setBorder(BorderFactory.createTitledBorder("������Ϣ"));
-		jp.setLayout(new BorderLayout());
-		jtf_inputMess = new JTextField();
-		jtf_inputMess.addKeyListener(this);
-		jbt_trans = new JButton("����");
-		jbt_trans.addActionListener(this);
-		jp.add(jtf_inputMess, BorderLayout.CENTER);
-		jp.add(jbt_trans, BorderLayout.EAST);
-		return jp;
-	}
-
-	@Override
-	public void keyPressed(KeyEvent arg0) {
-		if(arg0.getKeyCode() == KeyEvent.VK_ENTER){
-			if(arg0.getSource() == jtf_inputMess){
-				jbt_trans.doClick();
-			}
-		}
-	}
-
-	@Override
-	public void keyReleased(KeyEvent arg0) {}
-
-	@Override
-	public void keyTyped(KeyEvent arg0) {}
-
-	@Override
-	public void actionPerformed(ActionEvent e) {
-		if(e.getSource() == jbt_trans){
-			String str = jtf_inputMess.getText();
-			str.trim();
-			jtf_inputMess.setText("");
-			if(str.equals("")){
-				JOptionPane.showMessageDialog(this, "��Ϣ����Ϊ��");
-			}else{
-				SimpleDateFormat form = new SimpleDateFormat("yyyy-MM-dd  HH:mm");
-				String date = form.format(new Date());
-				String mess = client.username + "  " + date + "\n" + str;
-				jta_disMess.append(mess + "\n");
-				jta_disMess.setCaretPosition(jta_disMess.getText().length());
-				int index = client.username_online.indexOf(this.getTitle());
-				String info = client.username + "@single" + client.getThreadID() + "@single" +
-								(int)client.clientuserid.get(index) + "@single" + 
-								mess + "@single";
-				try {
-					client.dos.writeUTF(info);
-				} catch (IOException e1) {
-					e1.printStackTrace();
-				}
-			}
-		}
-	}
-
-	public void setDisMess(String chat_re) {
-		jta_disMess.append(chat_re + "\n");
-		jta_disMess.setCaretPosition(jta_disMess.getText().length());
-	}
-
-	public void closeSingleFrame(){
-		client.c_singleFrames.remove(this.getTitle());
-		setVisible(false);
-	}
-
-	public void setExitNotify() {
-		jta_disMess.append(this.getTitle() + "������.....");
-		jbt_trans.setEnabled(false);
-	}
-}
diff --git a/day26/resource/chat_socket_client/src/com/elient/WinCenter.java b/day26/resource/chat_socket_client/src/com/elient/WinCenter.java
deleted file mode 100644
index 986c8ec9..00000000
--- a/day26/resource/chat_socket_client/src/com/elient/WinCenter.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.elient;
-
-import java.awt.Dimension;
-import java.awt.Toolkit;
-import java.awt.Window;
-
-public class WinCenter {
-	public static void center(Window win){
-		Toolkit tkit = Toolkit.getDefaultToolkit();
-		Dimension sSize = tkit.getScreenSize();
-		Dimension wSize = win.getSize();
-		if(wSize.height > sSize.height){
-			wSize.height = sSize.height;
-		}
-		if(wSize.width > sSize.width){
-			wSize.width = sSize.width;
-		}
-		win.setLocation((sSize.width - wSize.width)/ 2, (sSize.height - wSize.height)/ 2);
-	}
-}
diff --git a/day26/resource/chat_socket_client/src/com/elient/socket.jpg b/day26/resource/chat_socket_client/src/com/elient/socket.jpg
deleted file mode 100644
index 8e4a9b58..00000000
Binary files a/day26/resource/chat_socket_client/src/com/elient/socket.jpg and /dev/null differ
diff --git a/day26/resource/chat_socket_server/.classpath b/day26/resource/chat_socket_server/.classpath
deleted file mode 100644
index 18d70f02..00000000
--- a/day26/resource/chat_socket_server/.classpath
+++ /dev/null
@@ -1,6 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<classpath>
-	<classpathentry kind="src" path="src"/>
-	<classpathentry kind="con" path="org.eclipse.jdt.launching.JRE_CONTAINER/org.eclipse.jdt.internal.debug.ui.launcher.StandardVMType/JavaSE-1.6"/>
-	<classpathentry kind="output" path="bin"/>
-</classpath>
diff --git a/day26/resource/chat_socket_server/.project b/day26/resource/chat_socket_server/.project
deleted file mode 100644
index f683704a..00000000
--- a/day26/resource/chat_socket_server/.project
+++ /dev/null
@@ -1,17 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<projectDescription>
-	<name>chat_socket_server</name>
-	<comment></comment>
-	<projects>
-	</projects>
-	<buildSpec>
-		<buildCommand>
-			<name>org.eclipse.jdt.core.javabuilder</name>
-			<arguments>
-			</arguments>
-		</buildCommand>
-	</buildSpec>
-	<natures>
-		<nature>org.eclipse.jdt.core.javanature</nature>
-	</natures>
-</projectDescription>
diff --git a/day26/resource/chat_socket_server/.settings/org.eclipse.jdt.core.prefs b/day26/resource/chat_socket_server/.settings/org.eclipse.jdt.core.prefs
deleted file mode 100644
index 07ddaffb..00000000
--- a/day26/resource/chat_socket_server/.settings/org.eclipse.jdt.core.prefs
+++ /dev/null
@@ -1,12 +0,0 @@
-#Wed Oct 24 13:27:56 CST 2012
-eclipse.preferences.version=1
-org.eclipse.jdt.core.compiler.codegen.inlineJsrBytecode=enabled
-org.eclipse.jdt.core.compiler.codegen.targetPlatform=1.6
-org.eclipse.jdt.core.compiler.codegen.unusedLocal=preserve
-org.eclipse.jdt.core.compiler.compliance=1.6
-org.eclipse.jdt.core.compiler.debug.lineNumber=generate
-org.eclipse.jdt.core.compiler.debug.localVariable=generate
-org.eclipse.jdt.core.compiler.debug.sourceFile=generate
-org.eclipse.jdt.core.compiler.problem.assertIdentifier=error
-org.eclipse.jdt.core.compiler.problem.enumIdentifier=error
-org.eclipse.jdt.core.compiler.source=1.6
diff --git a/day26/resource/chat_socket_server/Images/socket.jpg b/day26/resource/chat_socket_server/Images/socket.jpg
deleted file mode 100644
index 8e4a9b58..00000000
Binary files a/day26/resource/chat_socket_server/Images/socket.jpg and /dev/null differ
diff --git a/day26/resource/chat_socket_server/bin/com/server/BroadCast.class b/day26/resource/chat_socket_server/bin/com/server/BroadCast.class
deleted file mode 100644
index 5baa977b..00000000
Binary files a/day26/resource/chat_socket_server/bin/com/server/BroadCast.class and /dev/null differ
diff --git a/day26/resource/chat_socket_server/bin/com/server/ClientThread.class b/day26/resource/chat_socket_server/bin/com/server/ClientThread.class
deleted file mode 100644
index 6fbab69c..00000000
Binary files a/day26/resource/chat_socket_server/bin/com/server/ClientThread.class and /dev/null differ
diff --git a/day26/resource/chat_socket_server/bin/com/server/Server.class b/day26/resource/chat_socket_server/bin/com/server/Server.class
deleted file mode 100644
index 6f2029ec..00000000
Binary files a/day26/resource/chat_socket_server/bin/com/server/Server.class and /dev/null differ
diff --git a/day26/resource/chat_socket_server/bin/com/server/ServerFrame$1.class b/day26/resource/chat_socket_server/bin/com/server/ServerFrame$1.class
deleted file mode 100644
index 974083b1..00000000
Binary files a/day26/resource/chat_socket_server/bin/com/server/ServerFrame$1.class and /dev/null differ
diff --git a/day26/resource/chat_socket_server/bin/com/server/ServerFrame.class b/day26/resource/chat_socket_server/bin/com/server/ServerFrame.class
deleted file mode 100644
index 4d35b3ca..00000000
Binary files a/day26/resource/chat_socket_server/bin/com/server/ServerFrame.class and /dev/null differ
diff --git a/day26/resource/chat_socket_server/bin/com/server/ServerThread.class b/day26/resource/chat_socket_server/bin/com/server/ServerThread.class
deleted file mode 100644
index 0daa330f..00000000
Binary files a/day26/resource/chat_socket_server/bin/com/server/ServerThread.class and /dev/null differ
diff --git a/day26/resource/chat_socket_server/bin/com/server/WinCenter.class b/day26/resource/chat_socket_server/bin/com/server/WinCenter.class
deleted file mode 100644
index 15770749..00000000
Binary files a/day26/resource/chat_socket_server/bin/com/server/WinCenter.class and /dev/null differ
diff --git a/day26/resource/chat_socket_server/src/com/server/BroadCast.java b/day26/resource/chat_socket_server/src/com/server/BroadCast.java
deleted file mode 100644
index 91784143..00000000
--- a/day26/resource/chat_socket_server/src/com/server/BroadCast.java
+++ /dev/null
@@ -1,94 +0,0 @@
-package com.server;
-
-import java.io.IOException;
-
-
-
-public class BroadCast extends Thread {
-
-	ClientThread clientThread;
-	ServerThread serverThread;
-	String str;
-	private boolean flag_exit = false;
-	public BroadCast(ServerThread serverThread){
-		this.serverThread = serverThread;
-	}
-	
-	@Override
-	public void run() {
-		boolean flag = true;
-		while(flag_exit){
-			synchronized (serverThread.messages) {
-				if(serverThread.messages.isEmpty()){
-					continue;
-				}else{
-					str = (String)serverThread.messages.firstElement();
-					serverThread.messages.removeElement(str);
-					if(str.contains("@clientThread")){
-						flag = false;
-					}
-				}
-			}
-			synchronized (serverThread.clients) {
-				for(int i=0; i < serverThread.clients.size(); i++)
-                {
-                    clientThread = serverThread.clients.elementAt(i);
-                    if(flag){
-                    	try
-                        {
-                        	//���¼��ÿһ���ͻ��˷���������Ϣ
-                            if(str.contains("@exit")){
-                            	serverThread.clients.remove(i);
-                            	clientThread.closeClienthread(clientThread);
-                            	clientThread.dos.writeUTF(str);
-                            }
-                            if(str.contains("@chat") || str.contains("@userlist") || str.contains("@serverexit")){
-                            	clientThread.dos.writeUTF(str);
-                            }
-                            if(str.contains("@single")){
-                            	String[] info = str.split("@single");
-                            	int id_thread = Integer.parseInt(info[2]);
-                            	for(int j = 0; j < serverThread.clients.size(); j++){
-                            		if(id_thread == serverThread.clients.get(j).getId()){
-                            			serverThread.clients.get(j).dos.writeUTF(str);
-                            			i = serverThread.clients.size();
-                            			break;
-                            		}
-                            	}
-                            }
-                        }
-                        catch(IOException E){}
-                    }else{
-                    	String value = serverThread.users.get((int)clientThread.getId());
-                    	if(value.equals("@login@")){
-                    		flag = true;
-                    		try
-                            {
-                            	//���¼��ÿһ���ͻ��˷���������Ϣ
-                                clientThread.dos.writeUTF(str);
-                                if(str.contains("@exit")){
-                                	serverThread.clients.remove(i);
-                                	clientThread.closeClienthread(clientThread);
-                                }
-                            }
-                            catch(IOException E){}
-                    		break;
-                    	}
-                    }
-                }
-			}
-			if(str.contains("@serverexit")){
-				serverThread.users.clear();
-				flag_exit = false;
-			}
-		}
-	}
-
-	public void setFlag_exit(boolean b) {
-		flag_exit = b;
-	}
-
-	public void stopBroadCase() {
-		flag_exit  = false;
-	}
-}
diff --git a/day26/resource/chat_socket_server/src/com/server/ClientThread.java b/day26/resource/chat_socket_server/src/com/server/ClientThread.java
deleted file mode 100644
index edd2dd3b..00000000
--- a/day26/resource/chat_socket_server/src/com/server/ClientThread.java
+++ /dev/null
@@ -1,141 +0,0 @@
-package com.server;
-
-import java.io.DataInputStream;
-import java.io.DataOutputStream;
-import java.io.IOException;
-import java.net.Socket;
-import java.text.SimpleDateFormat;
-import java.util.Date;
-
-
-public class ClientThread extends Thread {
-
-	public Socket clientSocket;
-	public ServerThread serverThread;
-	public DataInputStream dis;
-	public DataOutputStream dos;
-	public String client_userID;
-	private boolean flag_exit = false;
-	public ClientThread(Socket socket, ServerThread serverThread){
-		clientSocket = socket;
-		this.serverThread = serverThread;
-		try {
-			dis = new DataInputStream(clientSocket.getInputStream());
-			dos = new DataOutputStream(clientSocket.getOutputStream());
-		} catch (IOException e) {
-			e.printStackTrace();
-		}
-	}
-	
-	@Override
-	public void run() {
-		while(flag_exit){
-			try {
-				String Message = dis.readUTF();
-				if(Message.contains("@login")){
-					String [] userInfo = Message.split("@login");
-					int userID = Integer.parseInt(userInfo[1]);
-					serverThread.users.remove(userID);
-					if(serverThread.users.containsValue(userInfo[0])){
-						for(int i = 0; i < serverThread.clients.size(); i++){
-							int id = (int)serverThread.clients.get(i).getId();
-							if(serverThread.users.get(id).equals(userInfo[0])){
-								serverThread.users.remove(id);
-								serverThread.users.put(id, userInfo[0] + "_" + id);
-								break;
-							}
-						}
-						serverThread.users.put(Integer.parseInt(userInfo[1]), userInfo[0] + "_" + userInfo[1]);
-					}else{
-						serverThread.users.put(userID, userInfo[0]);
-					}
-					
-					Message = null;
-					StringBuffer sb = new StringBuffer();
-					synchronized (serverThread.clients) {
-						for(int i = 0; i < serverThread.clients.size(); i++){
-							int threadID = (int) serverThread.clients.elementAt(i).getId();
-							sb.append((String)serverThread.users.get(new Integer(threadID)) + "@userlist");
-							sb.append(threadID + "@userlist");
-						}
-					}
-					String userNames = new String(sb);
-					serverThread.serverFrame.setDisUsers(userNames);
-					Message = userNames;
-				}else{
-					if(Message.contains("@exit")){
-						String [] userInfo = Message.split("@exit");
-						int userID = Integer.parseInt(userInfo[1]);
-						serverThread.users.remove(userID);
-						Message = null;
-						StringBuffer sb = new StringBuffer();
-						synchronized (serverThread.clients) {
-							for(int i = 0; i < serverThread.clients.size(); i++){
-								int threadID = (int) serverThread.clients.elementAt(i).getId();
-								if(userID == threadID){
-									serverThread.clients.removeElementAt(i);
-									i--;
-								}else{
-									sb.append((String)serverThread.users.get(new Integer(threadID)) + "@userlist");
-									sb.append(threadID + "@userlist");
-								}
-							}
-						}
-						String userNames = new String(sb);
-						if(userNames.equals("")){
-							serverThread.serverFrame.setDisUsers("@userlist");
-						}else{
-							serverThread.serverFrame.setDisUsers(userNames);
-						}
-						Message = userNames;
-					}else{
-						if(Message.contains("@chat")){
-							String[] chat = Message.split("@chat");
-							StringBuffer sb = new StringBuffer();
-							SimpleDateFormat form = new SimpleDateFormat("yyyy-MM-dd  HH:mm:ss");
-							String date = form.format(new Date());
-							sb.append(chat[0] + "  " + date + "\n");
-							sb.append(chat[2] + "@chat");
-							String str = new String(sb);
-							Message = str;
-							serverThread.serverFrame.setDisMess(Message);
-						}else{
-							if(Message.contains("@single")){
-								
-							}
-						}
-					}
-				}
-				synchronized (serverThread.messages) {
-					if(Message != null){
-						serverThread.messages.addElement(Message);
-					}
-				}
-				if(Message.contains("@exit")){
-					this.clientSocket.close();
-					flag_exit = false;
-				}
-			} catch (IOException e) {}
-		}
-	}
-
-	public void closeClienthread(ClientThread clientThread) {
-		if(clientThread.clientSocket != null){
-			try {
-				clientThread.clientSocket.close();
-			} catch (IOException e) {
-				System.out.println("server's clientSocket is null");
-			}
-		}
-		
-		try {
-			setFlag_exit(false);
-		} catch (Throwable e) {
-			e.printStackTrace();
-		}
-	}
-
-	public void setFlag_exit(boolean b) {
-		flag_exit = b;
-	}
-}
diff --git a/day26/resource/chat_socket_server/src/com/server/Server.java b/day26/resource/chat_socket_server/src/com/server/Server.java
deleted file mode 100644
index 43d1d008..00000000
--- a/day26/resource/chat_socket_server/src/com/server/Server.java
+++ /dev/null
@@ -1,58 +0,0 @@
-package com.server;
-
-
-
-public class Server {
-	
-	private ServerFrame serverFrame;
-	private ServerThread serverThread;
-	
-	public ServerFrame getServerFrame() {
-		return serverFrame;
-	}
-
-	public void setServerFrame(ServerFrame serverFrame) {
-		this.serverFrame = serverFrame;
-	}
-
-	public Server(){}
-	
-	public void startServer() {
-		try{
-			serverThread = new ServerThread(serverFrame);
-		}catch(Exception e){
-			System.exit(0);
-		}
-		serverThread.setFlag_exit(true);
-		serverThread.start();
-	}
-
-	public void stopServer(){
-		synchronized (serverThread.messages) {
-			String str = "@serverexit";
-			serverThread.messages.add(str);
-		}
-		serverThread.serverFrame.setDisMess("@exit");
-		serverThread.serverFrame.setDisUsers("@exit");
-		serverThread.stopServer();
-	}
-
-	
-
-	public static void main(String[] args) {
-		Server server = new Server();
-		ServerFrame serverFrame = new ServerFrame(server);
-		server.setServerFrame(serverFrame);
-		serverFrame.setVisible(true);
-	}
-
-	public void close() {
-		if(serverThread != null){
-			if(serverThread.isAlive()){
-				serverThread.stopServer();
-			}
-		}
-		System.exit(0);
-	}
-	
-}
diff --git a/day26/resource/chat_socket_server/src/com/server/ServerFrame.java b/day26/resource/chat_socket_server/src/com/server/ServerFrame.java
deleted file mode 100644
index 0361c8e3..00000000
--- a/day26/resource/chat_socket_server/src/com/server/ServerFrame.java
+++ /dev/null
@@ -1,164 +0,0 @@
-package com.server;
-
-import java.awt.Toolkit;
-import java.awt.event.ActionEvent;
-import java.awt.event.ActionListener;
-import java.awt.event.WindowAdapter;
-import java.awt.event.WindowEvent;
-import java.util.ArrayList;
-import java.util.List;
-
-import javax.swing.BorderFactory;
-import javax.swing.JFrame;
-import javax.swing.JButton;
-import javax.swing.JOptionPane;
-import javax.swing.JScrollPane;
-import javax.swing.JTextArea;
-import javax.swing.JList;
-import javax.swing.UIManager;
-import javax.swing.UnsupportedLookAndFeelException;
-
-public class ServerFrame extends JFrame implements ActionListener {
-	
-	private JButton jbt_start;
-	private JButton jbt_stop;
-	private JButton jbt_exit;
-	private JTextArea jta_disMess;
-	private JList jlt_disUsers;
-	
-	private Server server;
-	
-	public List<String> online_usernames;
-	public List<Integer> online_usernameids;
-	public ServerFrame(Server server) {
-		this.server = server;
-		online_usernames = new ArrayList<String>();
-		online_usernameids = new ArrayList<Integer>();
-		try {
-			UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
-		} catch (ClassNotFoundException e) {
-			e.printStackTrace();
-		} catch (InstantiationException e) {
-			e.printStackTrace();
-		} catch (IllegalAccessException e) {
-			e.printStackTrace();
-		} catch (UnsupportedLookAndFeelException e) {
-			e.printStackTrace();
-		}
-		setTitle("\u670D\u52A1\u5668");
-		setIconImage(Toolkit.getDefaultToolkit().getImage("Images/socket.jpg"));
-		setSize(449, 301);
-		setResizable(false);
-		WinCenter.center(this);
-		addWindowListener(new WindowAdapter() {
-			@Override
-			public void windowClosing(WindowEvent arg0) {
-				jbt_exit.doClick();
-			}
-		});
-		getContentPane().setLayout(null);
-		
-		jbt_start = new JButton("\u542F\u52A8\u670D\u52A1\u5668");
-		jbt_start.setBounds(32, 23, 103, 34);
-		jbt_start.addActionListener(this);
-		getContentPane().add(jbt_start);
-		
-		jbt_stop = new JButton("\u505C\u6B62\u670D\u52A1\u5668");
-		jbt_stop.setBounds(145, 23, 103, 34);
-		jbt_stop.setEnabled(false);
-		jbt_stop.addActionListener(this);
-		getContentPane().add(jbt_stop);
-		
-		jbt_exit = new JButton("\u9000\u51FA\u670D\u52A1\u5668");
-		jbt_exit.setBounds(258, 23, 103, 34);
-		jbt_exit.addActionListener(this);
-		getContentPane().add(jbt_exit);
-		
-		JScrollPane scrollPane = new JScrollPane();
-		scrollPane.setBounds(10, 64, 221, 192);
-		scrollPane.setWheelScrollingEnabled(true);
-		scrollPane.setBorder(BorderFactory.createTitledBorder("������Ϣ"));
-		getContentPane().add(scrollPane);
-		
-		jta_disMess = new JTextArea();
-		scrollPane.setViewportView(jta_disMess);
-		
-		JScrollPane scrollPane_1 = new JScrollPane();
-		scrollPane_1.setBounds(258, 65, 157, 191);
-		scrollPane_1.setBorder(BorderFactory.createTitledBorder("�����û�"));
-		getContentPane().add(scrollPane_1);
-		
-		jlt_disUsers = new JList();
-		jlt_disUsers.setVisibleRowCount(4);
-		scrollPane_1.setViewportView(jlt_disUsers);
-	}
-
-	/**
-	 * 
-	 */
-	private static final long serialVersionUID = 1L;
-
-	@Override
-	public void actionPerformed(ActionEvent arg0) {
-		if(arg0.getSource() == jbt_start){
-			jbt_start.setEnabled(false);
-			jbt_stop.setEnabled(true);
-			server.startServer();
-		}
-		if(arg0.getSource() == jbt_stop){
-			int flag = JOptionPane.showConfirmDialog(this, "�Ƿ�Ҫֹͣ��������", "", 
-            		JOptionPane.OK_CANCEL_OPTION, JOptionPane.QUESTION_MESSAGE);
-            if(flag == JOptionPane.OK_OPTION){
-            	server.stopServer();
-            	jbt_start.setEnabled(true);
-            	jbt_stop.setEnabled(false);
-            }
-		}
-		if(arg0.getSource() == jbt_exit){
-			if(jbt_stop.isEnabled()){
-				jbt_stop.doClick();
-			}
-			server.close();
-		}
-	}
-
-	public void setDisUsers(String userNames) {
-		if(userNames.equals("@userlist")){
-			jlt_disUsers.removeAll();
-			String[] user_null = new String[]{};
-			jlt_disUsers.setListData(user_null);
-		}else{
-			if(userNames.contains("@userlist")){
-				String[] dis = userNames.split("@userlist");
-				String [] disUsernames = new String[dis.length / 2];
-				int j = 0;
-				for(int i = 0; i < dis.length; i++){
-					disUsernames[j++] = dis[i++];
-				}
-				jlt_disUsers.removeAll();
-				jlt_disUsers.setListData(disUsernames);
-			}
-			if(userNames.contains("@exit")){
-				String[] dis = {};
-				jlt_disUsers.setListData(dis);
-			}
-		}
-	}
-
-	public void setDisMess(String message) {
-		if(message.contains("@chat")){
-			int local = message.indexOf("@chat");
-			jta_disMess.append(message.substring(0, local) + "\n");
-			jta_disMess.setCaretPosition(jta_disMess.getText().length());
-		}
-		if(message.contains("@exit")){
-			jta_disMess.setText("");
-		}
-	}
-
-	public void setStartAndStopUnable() {
-		JOptionPane.showMessageDialog(this, "����ͬʱ��������������");
-		jbt_start.setEnabled(false);
-		jbt_stop.setEnabled(false);
-	}
-}
diff --git a/day26/resource/chat_socket_server/src/com/server/ServerThread.java b/day26/resource/chat_socket_server/src/com/server/ServerThread.java
deleted file mode 100644
index e97879b3..00000000
--- a/day26/resource/chat_socket_server/src/com/server/ServerThread.java
+++ /dev/null
@@ -1,84 +0,0 @@
-package com.server;
-
-import java.io.IOException;
-import java.net.ServerSocket;
-import java.net.Socket;
-import java.net.SocketException;
-import java.util.HashMap;
-import java.util.Map;
-import java.util.Vector;
-
-public class ServerThread extends Thread {
-
-	public ServerSocket serverSocket;
-	public Vector<String> messages;
-	public Vector<ClientThread> clients;
-	public Map<Integer, String> users;
-	public BroadCast broadcast;
-	public int Port = 5000;
-	public boolean login = true;
-	public ServerFrame serverFrame;
-	private boolean flag_exit = false;
-	public ServerThread(ServerFrame serverFrame){
-		this.serverFrame = serverFrame;
-		messages = new Vector<String>();
-		clients = new Vector<ClientThread>();
-		users = new HashMap<Integer, String>();
-		try {
-			serverSocket = new ServerSocket(Port);
-		} catch (IOException e) {
-			this.serverFrame.setStartAndStopUnable();
-			System.exit(0);
-		}
-		broadcast = new BroadCast(this);
-		broadcast.setFlag_exit(true);
-		broadcast.start();
-	}
-	
-	@Override
-	public void run() {
-		Socket socket;
-		while(flag_exit){
-				try {
-					if(serverSocket.isClosed()){
-						flag_exit = false;
-					}else{
-						try{
-							socket = serverSocket.accept();
-						}catch(SocketException e){
-							socket = null;
-							flag_exit = false;
-						}
-						
-						if(socket != null){
-							ClientThread clientThread = new ClientThread(socket, this);
-							clientThread.setFlag_exit(true);
-							clientThread.start();
-							synchronized (clients) {
-								clients.addElement(clientThread);
-							}
-							synchronized (messages) {
-								users.put((int) clientThread.getId(), "@login@");
-								messages.add(clientThread.getId() + "@clientThread");
-							}
-						}
-					}
-				} catch (IOException e) {
-					e.printStackTrace();
-				}
-		}
-	}
-
-	public void stopServer() {
-		try {
-			if(this.isAlive()){
-				serverSocket.close();
-				setFlag_exit(false);
-			}
-		} catch (Throwable e) {}
-	}
-
-	public void setFlag_exit(boolean b) {
-		flag_exit = b;
-	}
-}
diff --git a/day26/resource/chat_socket_server/src/com/server/WinCenter.java b/day26/resource/chat_socket_server/src/com/server/WinCenter.java
deleted file mode 100644
index 039869c5..00000000
--- a/day26/resource/chat_socket_server/src/com/server/WinCenter.java
+++ /dev/null
@@ -1,20 +0,0 @@
-package com.server;
-
-import java.awt.Dimension;
-import java.awt.Toolkit;
-import java.awt.Window;
-
-public class WinCenter {
-	public static void center(Window win){
-		Toolkit tkit = Toolkit.getDefaultToolkit();
-		Dimension sSize = tkit.getScreenSize();
-		Dimension wSize = win.getSize();
-		if(wSize.height > sSize.height){
-			wSize.height = sSize.height;
-		}
-		if(wSize.width > sSize.width){
-			wSize.width = sSize.width;
-		}
-		win.setLocation((sSize.width - wSize.width)/ 2, (sSize.height - wSize.height)/ 2);
-	}
-}
diff --git "a/\345\244\215\344\271\240/day01review.txt" "b/\345\244\215\344\271\240/day01review.txt"
deleted file mode 100644
index a8964796..00000000
--- "a/\345\244\215\344\271\240/day01review.txt"
+++ /dev/null
@@ -1,80 +0,0 @@
-1�����������
-	�������չ
-	�����Ӳ��
-	���������
-	���������
-	java���ԣ���ƽ̨�ԣ���ȫ��
-		James Gosling:java֮��
-
-2�����ÿ���̨����
-	�̷� ð�� �س������뵽ij������
-	cd ����Ŀ¼
-	cd �༶Ŀ¼
-	dir ��ʾĿ¼�µ������ļ�
-	md ����Ŀ¼
-	rd ɾ��Ŀ¼
-	cls ����
-	exit �˳�
-	���䣺rd -sɾ����ʱ��ѯ��
-	      rd -q -sֱ��ɾ����ѯ��
-
-3��JVM��JRE,JDK���ߵ�����͹�ϵ
-	JVM:java���������֤��java���ԵĿ�ƽ̨�ͣ�Ϊ��ͬ�IJ���ϵͳ�ṩ��ͬ��JVM
-	JRE:����ʱ����������JVM�ͺ������
-	JDK���������߰�������JRE�Ϳ�������
-
-4��JDK�����أ���װ��ж��
-
-5����������
-	path��Ϊ������exe�ļ���������Ŀ¼������
-	��ʽ��
-	  (1)�ڻ���������path������javac��java���ڵ�Ŀ¼����������ǰ�棬�ж���ᰴ˳�����
-	  (2)������������JAVA_HOMEΪexeĿ¼���ڣ�path:%JAVA_HOME%\bin;ԭ����·��
-
-	classpath��Ϊ����class�ļ���������ָ��Ŀ¼������
-
-6��HelloWorld����
-
-7��
-8��
-9��
-10��ע��
-	ע�ͷ��ࣺ
-		����ע��  //
-		����ע��  /*   */
-		�ĵ�ע��  /**  */
-
-	ע�͵����ã�
-		����˵���ĵ�����ߴ���Ŀ��Ķ���
-		�������Գ���
-
-11���ؼ���
-	java�����б����ľ������⺬��ĵ���
-
-	�����ؼ���
-	
-	ע�����
-		goto��const��java�еĹؼ��ֱ��������Dz�δʹ��
-
-
-12����ʶ��
-	��ʶ�������ڸ��࣬�ӿڣ����������������ķ���
-
-	��ɹ���
-		Ӣ�Ĵ�Сд��ĸ
-		����
-		_��$
-	ע�����
-		���������ֿ�ͷ
-		�����ǹؼ���
-		�ϸ����ִ�Сд
-
-	������������
-		���������ļ��У����ڽ����ͬ����������
-			ȫ��Сд
-	
-		����߽ӿڣ�ÿһ������ĸ��д(��һ����API���ṩ�����ӿ������������淶)
-
-		�������߱������׸�����Сд�������д
-
-		��������д���������֮����_����
\ No newline at end of file
diff --git "a/\345\244\215\344\271\240/day02review.txt" "b/\345\244\215\344\271\240/day02review.txt"
deleted file mode 100644
index 97d4c9ad..00000000
--- "a/\345\244\215\344\271\240/day02review.txt"
+++ /dev/null
@@ -1,73 +0,0 @@
-1������
-	�Զ��峣������������
-	����ֵ������
-		�ַ���
-		�ַ�
-		����
-		����������
-		null���ճ���
-
-2������ת��
-	���ƣ�
-		�����ƣ�0b
-		�˽��ƣ�0
-		ʮ�����ƣ�0x
-
-	�������Ƶ�ʮ���ƣ�
-		ϵ��*����^Ȩ�η�֮��	
-
-	ʮ���Ƶ��������ƣ�
-		����ȡ��ֱ����Ϊ�㣬������ת
-
-	8421�룺����ת��
-
-3���з������������ʾ
-	ԭ�룺�����Ʊ�ʾ
-		����������λ0	����������λ1
-	���룺������ԭ��һ��	��������λΪ1������λ��λȡ��
-	���룺������ԭ��һ��	�����ɷ����1
-
-
-4��������������
-	������֣�
-		byte	1
-		short	2
-		int	4
-		long	8
-
-		boolean	1
-		char	2
-		float	4
-		double	8
-
-	Ĭ��������int����������double
-	����long�ͣ�ĩβ��l����L(�Ƽ����ô�д��)
-	����float�ͣ�ĩβ��f����F
-
-	�����������ͣ�
-		���飬�࣬�ӿ�
-
-5������
-	����ִ�й���ֵ�ᷢ���仯����
-
-6������ת��
-	��ʽ����ת��
-		byte��short��char->int->long->float->double
-
-		longΪʲô��ת����float��
-			  float�ײ�洢�ṹ��ͬ
-			  ��ʾ�����ݷ�Χfloat����
-		ע�����������ӣ��ȼ��ٿ��ռ�
-			  ������ӣ��ȿ��ռ��ټ�
-	ǿ������ת��
-		������
-
-7����ֵ�����
-8�����������
-	+-*/%	++ --�������Լ�����ǰ����������
-	+= -= *= /= %=
-9����ϵ�����
-	>< == >= <= !=
-10���߼������
-	& | ! ^
-	&& ||��������
\ No newline at end of file
diff --git "a/\345\244\215\344\271\240/day03review.txt" "b/\345\244\215\344\271\240/day03review.txt"
deleted file mode 100644
index 7f07d733..00000000
--- "a/\345\244\215\344\271\240/day03review.txt"
+++ /dev/null
@@ -1 +0,0 @@
-1����Ŀ�����
\ No newline at end of file
diff --git "a/\345\244\215\344\271\240/day19review.txt" "b/\345\244\215\344\271\240/day19review.txt"
deleted file mode 100644
index 16233a13..00000000
--- "a/\345\244\215\344\271\240/day19review.txt"
+++ /dev/null
@@ -1,105 +0,0 @@
-1���쳣
-	�쳣�������쳣�dz�����ֲ����������
-		  �೤�����г����Σ��������
-	�쳣���ࣺ
-		Throwable
-		     |---Error
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\ No newline at end of file
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