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add sort test

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ehlxr 2021-06-28 22:13:54 +08:00
parent f581b143dc
commit 165f099240
3 changed files with 56 additions and 8 deletions
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22
src/main/java/io/github/ehlxr/sort/BubbleSort.java
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@ -24,7 +24,8 @@
package io.github.ehlxr.sort;
import java.util.Arrays;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 冒泡排序
@ -59,7 +60,7 @@ public class BubbleSort {
swap(arr, j, j + 1);
}
}
System.out.println("Sorting: " + Arrays.toString(arr));
// System.out.println("Sorting: " + Arrays.toString(arr));
if (!flag) {
break;
}
@ -77,6 +78,21 @@ public class BubbleSort {
}
public static void main(String[] args) {
sort(new int[]{4, 9, 1, 6, 8, 10});
// int[] arr = {4, 9, 1, 8, 6, 2};
int[] arr = new int[80000];
for (int i = 0; i < 80000; i++) {
arr[i] = (int) (Math.random() * 8000000); //生成一个[0, 8000000) 数
}
Date data1 = new Date();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String date1Str = simpleDateFormat.format(data1);
System.out.println("排序前的时间是=" + date1Str);
sort(arr);
Date data2 = new Date();
String date2Str = simpleDateFormat.format(data2);
System.out.println("排序后的时间是=" + date2Str);
}
}

21
src/main/java/io/github/ehlxr/sort/InsertSort.java
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@ -24,7 +24,9 @@
package io.github.ehlxr.sort;
import java.text.SimpleDateFormat;
import java.util.Arrays;
import java.util.Date;
/**
* 插入排序
@ -55,7 +57,7 @@ public class InsertSort {
break;
}
}
System.out.println(Arrays.toString(arr));
// System.out.println(Arrays.toString(arr));
}
}
@ -88,6 +90,21 @@ public class InsertSort {
}
public static void main(String[] args) {
sort2(new int[]{4, 9, 1, 8, 6, 2});
// int[] arr = {4, 9, 1, 8, 6, 2};
int[] arr = new int[80000];
for (int i = 0; i < 80000; i++) {
arr[i] = (int) (Math.random() * 8000000); //生成一个[0, 8000000) 数
}
Date data1 = new Date();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String date1Str = simpleDateFormat.format(data1);
System.out.println("排序前的时间是=" + date1Str);
sort(arr);
Date data2 = new Date();
String date2Str = simpleDateFormat.format(data2);
System.out.println("排序后的时间是=" + date2Str);
}
}

21
src/main/java/io/github/ehlxr/sort/ShellSort.java
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@ -24,7 +24,8 @@
package io.github.ehlxr.sort;
import java.util.Arrays;
import java.text.SimpleDateFormat;
import java.util.Date;
/**
* 希尔排序
@ -61,7 +62,7 @@ public class ShellSort {
}
}
System.out.println(Arrays.toString(arr));
// System.out.println(Arrays.toString(arr));
// 每次将 gap 折半减小，循环上述操作
sort(arr, gap / 2);
@ -74,9 +75,23 @@ public class ShellSort {
}
public static void main(String[] args) {
int[] arr = {4, 9, 1, 8, 6, 2};
// int[] arr = {4, 9, 1, 8, 6, 2};
int[] arr = new int[80000];
for (int i = 0; i < 80000; i++) {
arr[i] = (int) (Math.random() * 8000000); //生成一个[0, 8000000) 数
}
Date data1 = new Date();
SimpleDateFormat simpleDateFormat = new SimpleDateFormat("yyyy-MM-dd HH:mm:ss");
String date1Str = simpleDateFormat.format(data1);
System.out.println("排序前的时间是=" + date1Str);
sort(arr, arr.length / 2);
// sort(arr);
Date data2 = new Date();
String date2Str = simpleDateFormat.format(data2);
System.out.println("排序后的时间是=" + date2Str);
}
// public static void sort(int[] arr) {