Question

Write a java program to input 2 numbers and an operator. Using switch case perform the calculation as per the operator ie + or - or * or / or % ​

Answer 1

Answer:

Explanation:

import java.util.*;

class calculation

{

public static void main(String args[])

{

Scanner sc = new Scanner(System.in);

int sum,sub,div,mul,x,a,b;

System.out.println("Enter your Choice");

System.out.println("1.Addition");

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

System.out.println("3.Multiplication");

System.out.println("4.Division");

x=sc.nextInt();

switch(x)

{

case 1:

System.out.println("Enter first Number");

a=sc.nextInt();

System.out.println("Enter second number");

b=sc.nextInt();

sum=a+b;

System.out.println("The Sum is : " + sum);

break;

case 2:

System.out.println("Enter first Number");

a=sc.nextInt();

System.out.println("Enter second number");

b=sc.nextInt();

sub=a - b;

System.out.println("The subtraction is : " + sub);

break;

case 3:

System.out.println("Enter first Number");

a=sc.nextInt();

System.out.println("Enter second number");

b=sc.nextInt();

mul=a+b;

System.out.println("The Multiplication is : " + mul);

break;

case 4:

System.out.println("Enter first Number");

a=sc.nextInt();

System.out.println("Enter second number");

b=sc.nextInt();

div=a+b;

System.out.println("The Division is : " + div);

break;

default:

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

break;

}

}

}