Shell,Insert

Author: 邵明

out/production/JavaSortAlgorithm/cn/shellming/impl/ArraySort.class

@@ -0,0 +1,28 @@
+package cn.shellming.impl;
+
+import java.util.Arrays;
+
+/**
+ * @ClassName InsertionSort
+ * @Description TODO
+ * @Author shaoming
+ * @Date 2020/4/2 2:47 上午
+ */
+public class InsertionSort implements ArraySort {
+    @Override
+    public int[] sort(int[] sourceArray) {
+        long t1 = System.currentTimeMillis();
+        int[] res = Arrays.copyOf(sourceArray,sourceArray.length);
+        for(int i = 1; i < res.length; ++i){
+            for(int j = i; j > 0; --j){
+                if(res[j] < res[j - 1]){
+                    int temp = res[j];
+                    res[j] = res[j - 1];
+                    res[j - 1] = temp;
+                }
+            }
+        }
+        System.err.println(this.getClass().getName() + "      " + (System.currentTimeMillis() - t1));
+        return res;
+    }
+}

out/production/JavaSortAlgorithm/cn/shellming/impl/BubbleSort.class

@@ -0,0 +1,30 @@
+package cn.shellming.impl;
+
+import java.util.Arrays;
+
+/**
+ * @ClassName InsertionSortII
+ * @Description TODO
+ * @Author shaoming
+ * @Date 2020/4/2 4:50 下午
+ */
+public class InsertionSortII implements ArraySort {
+    @Override
+    public int[] sort(int[] sourceArray) {
+        long t1 = System.currentTimeMillis();
+        int[] arr = Arrays.copyOf(sourceArray, sourceArray.length);
+        for (int i = 1; i < arr.length; ++i){
+            int temp = arr[i];
+            int j = i;
+            while(j > 0 && temp < arr[j - 1]){
+                arr[j] = arr[j - 1];
+                j--;
+            }
+            if (i != j){
+                arr[j] = temp;
+            }
+        }
+        System.err.println(this.getClass().getName() + "      " + (System.currentTimeMillis() - t1));
+        return arr;
+    }
+}

out/production/JavaSortAlgorithm/cn/shellming/impl/InsertionSort.class

@@ -0,0 +1,36 @@
+package cn.shellming.impl;
+
+import java.util.Arrays;
+
+/**
+ * @ClassName ShellSort
+ * @Description TODO
+ * @Author shaoming
+ * @Date 2020/4/3 3:22 上午
+ */
+public class ShellSort implements ArraySort {
+
+    @Override
+    public int[] sort(int[] sourceArray) {
+        long t1 = System.currentTimeMillis();
+        int[] res = Arrays.copyOf(sourceArray,sourceArray.length);
+        int gap = 1;
+        while(gap < res.length / 3){
+            gap = gap * 3 + 1;
+        }
+        while (gap > 0){
+            for (int i = gap; i < res.length; i++) {
+                int tmp = res[i];
+                int j = i - gap;
+                while (j >= 0 && res[j] > tmp) {
+                    res[j + gap] = res[j];
+                    j -= gap;
+                }
+                res[j + gap] = tmp;
+            }
+            gap = (int) Math.floor(gap / 3);
+        }
+        System.err.println(this.getClass().getName() + "      " + (System.currentTimeMillis() - t1));
+        return res;
+    }
+}

out/production/JavaSortAlgorithm/cn/shellming/impl/InsertionSortII.class

@@ -1,7 +1,6 @@
 package cn.shellming.impl.test;
 
-import cn.shellming.impl.BubbleSort;
-import cn.shellming.impl.SelectionSort;
+import cn.shellming.impl.*;
 
 import java.util.Arrays;
 import java.util.Random;
@@ -14,11 +13,16 @@
  */
 public class Test {
     public static void main(String[] args) {
-
         BubbleSort sort = new BubbleSort();
-        System.err.println(Arrays.toString(sort.sort(Test.randomNumber(10000))));
+        System.err.println(Arrays.toString(sort.sort(Test.randomNumber(1000))));
         SelectionSort selectionSort = new SelectionSort();
-        System.err.println(Arrays.toString(selectionSort.sort(Test.randomNumber(10000))));
+        System.err.println(Arrays.toString(selectionSort.sort(Test.randomNumber(100000))));
+        InsertionSort insertionSort = new InsertionSort();
+        System.out.println(Arrays.toString(insertionSort.sort(Test.randomNumber(1000))));
+        InsertionSortII ii = new InsertionSortII();
+        System.out.println(Arrays.toString(ii.sort(Test.randomNumber(10))));
+        ShellSort shellSort = new ShellSort();
+        System.out.println(Arrays.toString(shellSort.sort(Test.randomNumber(10))));
     }
 
     public static int[] randomNumber(int n){