package com.pb.string.demo1;/** * 插入排序 * @author Denny * */public class Demo { public static void main(String[] args) { int[] arr = { 5, 2, 8, 3, 1, 9, 6, 7, 11, 0, -3, -5, -8, -11 }; insertSort(arr); PRint(arr); } public static void insertSort(int[] arr) { for (int i = 1; i < arr.length; i++) { int key = arr[i]; // 临时变量存储 /*for (int j = i - 1; j >= 0 && arr[j] > key; j--) { arr[j + 1] = arr[j]; arr[j] = key; }*/ for(int j=i-1;j>=0;j--){ if(arr[j]>key){ //交换变量值 arr[j+1]=arr[j]; //当前的下标i的值=当前下标为j的值 arr[j]=key; // } } } } public static void print(int[] arr) { System.out.print("["); for (int i = 0; i < arr.length; i++) { if (i != arr.length - 1) { System.out.print(arr[i] + ","); } else { System.out.println(arr[i] + "]"); } } }}
结果:
[-11,-8,-5,-3,0,1,2,3,5,6,7,8,9,11]
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