java实现冒泡排序

public class Demo01 {
    public static void main(String[] args) {
        int[] a = {4,5,6,1,2,3,4,11,9,8,6,4,5,90,23,22,12};
        sort(a);
        System.out.println(Arrays.toString(a));
    }

    private static void sort(int[] a) {
        for (int i = a.length-1; i > 0; i--) {
            for (int j = 0; j < i; j++) {
                if (a[j] > a[j+1]){
                    int b = a[j];
                    a[j] = a[j+1];
                    a[j+1] = b;
                }
            }
        }
    }


}