冒泡排序的实现

public class BubbleSortDemo {

    /**
     * @param args
     */
    public static void main(String[] args) {
        // TODO Auto-generated method stub
        int []ary=new int[]{2,1,4,3,7,5,6,9};
        ary=bubblesort(ary);
        for (int i = 0; i < ary.length; i++) {
            System.out.print(ary[i] + " ");
        }
    }

    public static int[] bubblesort(int []ary)
    {
        for(int i=0;i<ary.length-1;i++)
        {
            for(int j=0;j<ary.length-i-1;j++)
            {
                if(ary[j]>ary[j+1])
                {
                    int temp = ary[j];
                    ary[j] = ary[j+1];
                    ary[j+1] = temp;
                }
            }
        }
        return ary;
    }
}