Calculator using switch-case in java .

■》》Ved varshney ♤♧

■》input->

import java.util.*;

public class calculator_switch_case {

public static void main(String[] args) {

    Scanner sc=new Scanner(System.in);

    System.out.println("enter two numbers=");

    int a=sc.nextInt();

    int b=sc.nextInt();

    System.out.println("press 1 for additon.");

    System.out.println("press 2 for subtraction.");

    System.out.println("press 3 for multiplication.");

    System.out.println("press 4 for division.");

    System.out.println("press 5 for modulus.");

    System.out.println("enter your choice=");

    int choice=sc.nextInt();

    switch (choice) {

        case 1:

            System.out.println("the addition is="+(a+b));

            break;

        case 2:

            System.out.println("the subtraction is="+(a-b)); 

            break;

        case 3:

            System.out.println("the multiplication is="+(a*b)); 

            break;

        case 4:

            if(b!=0)

            System.out.println("the division is="+(a/b));

            else 

            System.out.println("division is not possible.");

            break;

        case 5:

            if(b!=0)

            System.out.println("the modulus is="+(a%b));

            else 

            System.out.println(" is not possible.");

            break;

        default:

            System.out.println("invalid choice.");

    }

}

}

                   

■》Output->

 enter two numbers= 4

                                  5

 press 1 for addition.

 press 2 for subtraction.

 press 3 for multiplication.

 press 4 for division.

 press 5 for modulus.

 enter your choice= 4

the multiplication  is =20