选择排序

package sort20171101;

import java.util.*;

public class Selection {

    public static void main(String[] args) {
        // TODO Auto-generated method stub
        
        int []a = new int[20];
        int n;
        Scanner in = new Scanner(System.in);
        n = in.nextInt();
        for(int i = 0; i < n; i++) {
            a[i] = in.nextInt();
        }
        
        //选择排序
        
        for(int i = 0; i < n; i++) {
            int min = i;
            for(int j = i; j < n; j++) {
                if(a[j] < a[min]) {
                    min = j;
                }
            }
            int temp;
            temp = a[i];
            a[i] = a[min];
            a[min] = temp;
        }
        
        for(int i = 0; i < n; i++) {
            System.out.println(a[i]);
        }

    }

}