【每天一道编程系列-2018.2.9】（Ans）

【题目描述】Implementation of a given order of 4 integers from large to small

【题目翻译】编写程序实现对给定的 4 个整数从大到小的顺序排列

【答案】
/**
* @author: yesr
* @date: 2018.2.9
*/

import java.util.Scanner;

public class Test0209 {
private static int number=4; //输入4个数存放在数组中
private static int[] t1 = new int[number];
public static void main(String[] args) {
Test0209 obj = new Test0209();
obj.sort();
}
void sort(){
System.out.println("请输入4个数：");
Scanner in_t1 = new Scanner(System.in);//循环输入数组
for(int i=0;i<number;i++){
t1[i]=in_t1.nextInt();}
for (int i = 0; i < t1.length; i++) {
int pos = i;
for (int j = i + 1; j < t1.length; j++) {
if (t1[pos] > t1[j])
pos = j;
}
if (pos != i) {
t1[i] = t1[i] + t1[pos];
t1[pos] = t1[i] - t1[pos];
t1[i] = t1[i] - t1[pos];
}
}

for (int i = t1.length - 1; i >= 0; i--)
System.out.print(t1[i] + "\t");
}
}