Calculator.java

import java.util.*;
public class Calculator {
    public static void main(String[] args) {

        System.out.println("\t \t Welcome to our Calculator\n");

        Scanner sc = new Scanner(System.in);
        System.out.print("Enter a number: ");
        double num1 = sc.nextDouble();
        System.out.print("Enter a number: ");
        double num2 = sc.nextDouble();

        System.out.println("\t \tSelect an Option \nAddition (1) \nSubtraction (2) \nMultiplication(3) \nDivision (4)\n");
        int option = sc.nextInt();

        switch (option) {

            case 1: { System.out.println("Addition =" + (num1 + num2));}
                break;

            case 2: {System.out.println("Subtraction = " + (num1 - num2));}
                break;

            case 3: { System.out.println("Multiplcation = " + (num1 * num2));}
                break;

            case 4: {System.out.println("Division = " + (num1 / num2));}
                break;

            default:
                    {System.out.println("Invalid option");}
            
        }

    }

}