[java]輸入兩個int變量，交換變量的值

[java]輸入兩個int變量，交換變量的值

代碼如下：

import java.util.Scanner;

public class HomeWork {

    public static void main(String[] args) {
        Scanner scan = new Scanner(System.in);
        System.out.print("a = ");
        int a = scan.nextInt();
        System.out.print("b = ");
        int b = scan.nextInt();
        System.out.println("======swap======");
        int tmp = a;
        a = b;
        b = tmp;
        System.out.println("a = " + a);
        System.out.println("b = " + b);
    }
    
}

輸入12和23，輸出23和12，完成交換：