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‎JavaAppLesson002/org/csystem/app/App.java

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/*----------------------------------------------------------------------------------------------------------------------
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Aşağıdaki örnekte komut satırı argümanı verilmemişse klavyeden giriş yapılabilecek
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bir program yazılmıştır
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----------------------------------------------------------------------------------------------------------------------*/
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package org.csystem.app;
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import org.csystem.util.Console;
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import org.csystem.util.StringUtil;
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class App {
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public static void main(String [] args)
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{
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if (args.length > 1) {
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Console.Error.writeLine("Argument can not be greater than 1(one)");
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System.exit(-1);
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}
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var arg = args.length == 0 ? Console.read("Input your text:") : args[0];
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Console.writeLine(StringUtil.isPalindrome(arg) ? "Palindrome" : "Not a palindrome");
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Console.writeLine("Copyleft C and System Programmers Association");
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}
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}
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‎JavaAppLesson002/org/csystem/app/samples/centrallimittheorem/CentralLimitTheoremSimulation.java

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/*----------------------------------------------------------------------------------------------------------------------
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CentralLimitTheoremSimulation sınıfı
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----------------------------------------------------------------------------------------------------------------------*/
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package org.csystem.app.samples.centrallimittheorem;
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import org.csystem.util.ArrayUtil;
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import java.util.Random;
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public class CentralLimitTheoremSimulation {
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private final int m_max;
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private final int m_sampleCount;
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private final int m_count;
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private final int m_divisor;
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private final int [] m_counts;
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private final Random m_random;
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private double getSamplesAverage()
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{
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double sum = 0;
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for (int i = 0; i < m_sampleCount; ++i)
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sum += m_random.nextInt(m_max + 1);
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return sum / m_sampleCount;
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}
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private void start()
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{
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for (int i = 0; i < m_count; ++i) {
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double avg = getSamplesAverage();
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++m_counts[(int)avg / m_divisor];
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}
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}
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public CentralLimitTheoremSimulation(int max, int sampleCount, int count, int n)
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{
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//...
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m_max = max;
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m_sampleCount = sampleCount;
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m_count = count;
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m_counts = new int[n];
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m_random = new Random();
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m_divisor = m_max / m_counts.length;
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}
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public void run(int n, char ch)
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{
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start();
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ArrayUtil.display(m_counts);
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ArrayUtil.drawHistogram(m_counts, n, ch);
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}
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}

‎JavaAppLesson002/org/csystem/app/samples/centrallimittheorem/CentralLimitTheoremSimulationApp.java

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/*----------------------------------------------------------------------------------------------------------------------
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CentralLimitTheoremSimulationApp sınıfı
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----------------------------------------------------------------------------------------------------------------------*/
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package org.csystem.app.samples.centrallimittheorem;
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public class CentralLimitTheoremSimulationApp {
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public static void run()
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{
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CentralLimitTheoremSimulation clt = new CentralLimitTheoremSimulation(10000, 5, 100_000_000, 10);
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clt.run(20, 'X');
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}
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}

‎JavaAppLesson002/org/csystem/app/samples/commandpromptapp/CommandPrompt.java

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package org.csystem.app.samples.commandpromptapp;
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import org.csystem.util.ArrayUtil;
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import org.csystem.util.StringUtil;
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import java.util.Scanner;
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public class CommandPrompt {
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private String m_prompt;
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private static final String [] MS_COMMANDS = {"length", "reverse", "upper", "lower", "prompt", "clear", "quit"};
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private void doWorkForCommand(int i, String [] cmds)
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{
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switch (MS_COMMANDS[i]) {
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case "length":
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lengthProc(cmds);
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break;
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case "reverse":
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reverseProc(cmds);
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break;
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case "upper":
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upperProc(cmds);
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break;
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case "lower":
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lowerProc(cmds);
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break;
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case "prompt":
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promptProc(cmds);
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break;
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case "clear":
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clearProc(cmds);
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break;
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case "quit":
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quitProc(cmds);
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break;
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}
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}
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private void doWorkForCommands(String [] cmds)
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{
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if (cmds[0].length() < 3) {
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System.out.println("Komut en az 3 karakterli olmalıdır");
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return;
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}
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int i;
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for (i = 0; i < MS_COMMANDS.length; ++i)
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if (MS_COMMANDS[i].startsWith(cmds[0])) {
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doWorkForCommand(i, cmds);
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break;
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}
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if (i == MS_COMMANDS.length)
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System.out.println("Geçersiz komut");
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}
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private void lengthProc(String [] cmds)
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{
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String s = ArrayUtil.join(cmds, 1, ' ');
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System.out.println(s.length());
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}
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private void reverseProc(String [] cmds)
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{
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String s = ArrayUtil.join(cmds, 1, ' ');
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System.out.println(StringUtil.reverse(s));
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}
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private void upperProc(String [] cmds)
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{
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String s = ArrayUtil.join(cmds, 1, ' ');
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System.out.println(s.toUpperCase());
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}
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private void lowerProc(String [] cmds)
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{
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String s = ArrayUtil.join(cmds, 1, ' ');
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System.out.println(s.toLowerCase());
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}
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private void promptProc(String [] cmds)
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{
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String s = ArrayUtil.join(cmds, 1, ' ');
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m_prompt = s;
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}
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private void clearProc(String [] cmds)
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{
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if (cmds.length > 1) {
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System.out.println("clear komutu tek başına kullanılmalıdır");
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return;
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}
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for (int i = 0; i < 30; ++i)
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System.out.println();
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}
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private void quitProc(String [] cmds)
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{
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if (cmds.length > 1) {
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System.out.println("quit komutu tek başına yazılmalıdır");
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return;
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}
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System.out.println("Copyleft @ C ve Sistem Programcıları Derneği");
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System.out.println("Tekrar yapıyor musunuz?");
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System.exit(0);
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}
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public CommandPrompt(String prompt)
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{
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m_prompt = prompt;
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}
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public void run()
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{
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Scanner kb = new Scanner(System.in);
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for (;;) {
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System.out.print(m_prompt + ">");
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String cmdStr = kb.nextLine();
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String [] cmds = cmdStr.split("[ \t]+");
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doWorkForCommands(cmds);
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}
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}
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}

‎JavaAppLesson002/org/csystem/app/samples/commandpromptapp/CommandPromptApp.java

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/*----------------------------------------------------------------------------------------------------------------------
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CommandPromptApp sınıfı
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----------------------------------------------------------------------------------------------------------------------*/
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package org.csystem.app.samples.commandpromptapp;
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public class CommandPromptApp {
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private CommandPromptApp() {}
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public static void run()
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{
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CommandPrompt cp = new CommandPrompt("CSD");
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cp.run();
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}
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}

‎JavaAppLesson002/org/csystem/app/samples/companyapp/CompanyApp.java

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package org.csystem.app.samples.companyapp;
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public class CompanyApp {
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public static void run()
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{
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HumanResources humanResources = new HumanResources();
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Worker worker = new Worker("12345678912", "Ali", "mecidiyeköy", 60.5, 8);
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humanResources.payInsurance(worker);
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Manager manager = new Manager("12345676542", "Veli", "Fatih", "yazılım", 200000);
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humanResources.payInsurance(manager);
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ProjectWorker projectWorker = new ProjectWorker("12356789348", "Selami", "şişli", 60.5, 8, "Okul otomasyonu");
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humanResources.payInsurance(projectWorker);
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SalesManager salesManager = new SalesManager("12345676548", "Ayşe", "Beylikdüzü", "yazılım", 10000, 3000);
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humanResources.payInsurance(salesManager);
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}
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}

‎JavaAppLesson002/org/csystem/app/samples/companyapp/Employee.java

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package org.csystem.app.samples.companyapp;
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public abstract class Employee {
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private String m_citizenId;
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private String m_name;
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private String m_address;
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//...
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protected Employee(String citizenId, String name, String address)
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{
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m_citizenId = citizenId;
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m_name = name;
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m_address = address;
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}
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public String getCitizenId()
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{
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return m_citizenId;
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}
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public void setCitizenId(String citizenId)
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{
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m_citizenId = citizenId;
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}
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public String getName()
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{
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return m_name;
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}
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public void setName(String name)
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{
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m_name = name;
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}
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public String getAddress()
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{
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return m_address;
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}
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public void setAddress(String address)
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{
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m_address = address;
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}
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public abstract double calculatePayment();
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}

‎JavaAppLesson002/org/csystem/app/samples/companyapp/HumanResources.java

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package org.csystem.app.samples.companyapp;
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public class HumanResources {
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//...
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public void payInsurance(Employee employee)
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{
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System.out.printf("Citizen Id:%s%n", employee.getCitizenId());
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System.out.printf("Name Id:%s%n", employee.getName());
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System.out.printf("Payment:%f%n", employee.calculatePayment());
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}
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}

‎JavaAppLesson002/org/csystem/app/samples/companyapp/Manager.java

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package org.csystem.app.samples.companyapp;
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public class Manager extends Employee {
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private String m_department;
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private double m_salary;
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public Manager(String citizenId, String name, String address, String department, double salary)
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{
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super(citizenId, name, address);
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m_department = department;
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m_salary = salary;
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}
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public String getDepartment()
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{
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return m_department;
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}
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public void setDepartment(String department)
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{
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m_department = department;
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}
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public double getSalary()
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{
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return m_salary;
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}
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public void setSalary(double salary)
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{
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m_salary = salary;
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}
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public double calculatePayment()
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{
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return m_salary * m_salary * 0.5;
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}
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}

‎JavaAppLesson002/org/csystem/app/samples/companyapp/ProjectWorker.java

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package org.csystem.app.samples.companyapp;
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public class ProjectWorker extends Worker {
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private String m_project;
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public ProjectWorker(String citizenId, String name, String address, double feePerHour, int hourPerDay, String project)
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{
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super(citizenId, name, address, feePerHour, hourPerDay);
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m_project = project;
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}
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public String getProject()
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{
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return m_project;
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}
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public void setProject(String project)
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{
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m_project = project;
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}
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public double calculatePayment()
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{
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return super.calculatePayment() + 1.5;
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}
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}

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