冒泡排序_关于toString

//冒泡排序
package com.ShiXun_JiChu;

import java.util.Arrays;

public class day20221119_05 {
    public static void main(String[] args) {
        int []arr={10,5,2,11};
        System.out.println(Arrays.toString(arr));
        for (int i = 0; i <arr.length-1 ; i++) {
            for (int j = 0; j < arr.length - 1 - i; j++) {
                int a = 0;
                if (arr[j] > arr[j + 1]) {
                    a = arr[j];
                    arr[j] = arr[j + 1];
                    arr[j + 1] = a;
                }
            }
        }
        //这是排序后的数组顺序
        System.out.println(Arrays.toString(arr));
    }
}
/*
重点:
 System.out.println(Arrays.toString());
 Arrays.toString()输出数组里面元素
 */