題目：

輸入3個數a,b,c，按大小順序輸出。

程式碼：

import java.util.Scanner;
public class lianxi34 {
public static void main(String[] args) {
    Scanner s = new Scanner(System.in);
    System.out.println("請輸入3個整數：");
    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("從大到小的順序輸出:");
    System.out.println(a + " " + b + " " + c);
}
}