萬花筒

import java.util.Scanner;

public class Addition

{

   public static void main ( String args[])
   {

      Scanner input = new Scanner ( System.in );

      int number1;
      int number2;
      int sum;

      System.out.print ("請輸入第一個整數");
      number1 = input.nextInt();

      System.out.print ("請輸入第二個整數");
      number2 = input.nextInt();

      sum = number1 + number2;        中間的數學符號可以改 + - * /

      System.out.printf("加總結果為 %d%n",sum);

   }

}