java二分查找代码_java 二分查找 代码

public  class hhh {
 
    public static void main(String[] args){
        int ary[]={1,2,3,4,5,6};
        int p=5;
        int left=0;
        int right=ary.length-1;
        int a=0;
        while(left<right){
            int mid=(left+right)/2;
            a=mid;
            if(p<ary[mid]){
                right=mid;
                mid=(left+right)/2;
            }
            else if (p>ary[mid]){
                left=mid;
                left=(left+right)/2;
 
            }
            else
            {System.out.println(a);
            break;}
 
 
        }