选择排序

 

import java.util.Arrays;

public class SortDemo {
    public static void main(String[] args) {
        int ary[]=new int[]{8,2,3,7,1,5};
        selSort(ary);
        System.out.println(Arrays.toString(ary));
    }
    public static void selSort(int[] ary){    //选择排序
        for(int i=0;i<ary.length-1;i++){      //i是比几轮，(length-1)轮
            for(int j=i+1;j<ary.length;j++){  //每轮循环后面的数与第一个比，放好后，下一轮从第二个数开始
                if(ary[i]<ary[j]){
                    int t=ary[i];
                    ary[i]=ary[j];
                    ary[j]=t;
                }
            }
        }
    }
}