Java版冒泡排序

//冒泡排序
public class BubbleSort {
    public static void main(String[] args) {
        int[] a1 = {12, 423, 23, 41, 24, -23, 12, 546, 76};   //随意给定一个数组
        for (int j = 0; j < a1.length; j++) {
            for (int i = 0; i < a1.length - 1; i++) {
                if (a1[i + 1] < a1[i]) {        //后者小于前者，则交换位置
                    int temp;                   //设定值交换过程的中间变量
                    temp = a1[i];
                    a1[i] = a1[i + 1];
                    a1[i + 1] = temp;
                }
            }
        }
        System.out.println("从小到大的顺序：");
        for (int k = 0; k < a1.length; k++) {        //输出排好序的数组
            System.out.print(a1[k] + " ");
        }
    }
}