java 输入3个数a,b,c，按大小顺序输出的实例讲解

import java.util.Scanner;public class lianxi34 {public static void main(String[] args) { Scanner s = new Scanner(System.in); System.out.println("请输入3个整数："); int a = s.nextInt(); int b = s.nextInt(); int c = s.nextInt();  if(a < b) {  int t = a;  a = b;  b = t; }  if(a < c) {  int t = a;  a = c;  c = t; }  if(b < c) {  int t = b;  b = c;  c = t; } System.out.println("从大到小的顺序输出:"); System.out.println(a + " " + b + " " + c);}}