練習題 1_1:四則運算

由鍵盤輸入任二個實數，後進行加減乘除，四則運算。

執行結果如下圖 :

程式碼如下 :

import java.util.Scanner;

public class P1_1 {

    public static void main(String[] args) {
       
        Scanner scanner = new Scanner(System.in);
       
        System.out.println("X及Y 加減乘除運算。");

        System.out.print("請輸入X：");    
        double x = scanner.nextDouble(); 

        System.out.print("請輸入Y：");    
        double y = scanner.nextDouble(); 

        System.out.println("x + y = " + (x + y));
        System.out.println("x - y = " + (x - y));
        System.out.println("x * y = " + (x * y));
        System.out.println("x / y = " + (x / y));
        System.out.println("x % y = " + (x % y));
    }
}