【java】冒泡排序

import java.util.Arrays;

public class BubbleSort {
    public static void bubbleSort(int[] a) {
        int i, j;
        int len = a.length;
        int tmp;
        for (i = 0; i < len - 1; ++i) {
            for (j = len - 1; j > i; --j) {
                if (a[j] < a[j-1]) {
                    tmp = a[j];
                    a[j] = a[j-1];
                    a[j-1] = tmp;
                }
            }
        }
    }

    public static void main(String[] args) {
        int[] a = {5,4,9,8,6,0,1,3,2};
        bubbleSort(a);
        System.out.println(Arrays.toString(a));
    }
}