结果

image.png

我写的只是向后冒泡的例子，向前冒泡也很简单，自己改下就行了

完整代码

package Sort;

/**
 * @author klr
 * @create 2020-07-06-18:07
 */
public class BubbleSort {

    public static void main(String[] args) {
        BubbleSort bubbleSort = new BubbleSort();
        int[] a1=new int[]{3,1,2,5,4,9,0,7};
        int[] a=new int[]{0,1,2,3,5,4,9,7};//测试提前结束的例子

        //正常排序
        System.out.println("普通排序");
        bubbleSort.sort(a1);
        for (int i1 : a1) {
            System.out.printf(i1+" ");
        }
        System.out.println();
        System.out.println();
        //提前结束
        bubbleSort.sort(a);
        for (int i : a) {
            System.out.printf(i+" ");
        }

    }

    //向后冒泡
    public void sort(int[] array){
        int temp=0;
        for (int i = 0; i < array.length-1; i++) {
            boolean flag=true;//标志位，减少交换次数
            for (int j = 0; j < array.length-1-i; j++) {
                if(array[j]>array[j+1]){
                    flag=false;
                    temp=array[j];
                    array[j]=array[j+1];
                    array[j+1]=temp;
                }
            }
            if (flag) {
                System.out.printf("排序%d次\n", i + 1);
                return;
            }
        }
    }
}