SampleCalculator.java

package day3;

import java.util.Scanner;

public class SampleCalculator {

	public static void main(String[] args) {
		Scanner scanner = new Scanner(System.in);
		System.out.println("Enter the first number");
		double num1 = scanner.nextDouble();
		
		System.out.println("Enter the second number");
		double num2 = scanner.nextDouble();
		
		System.out.println("Choose an operation");
		System.out.println("1. Addition");
		System.out.println("2. Subtraction");
		System.out.println("3. Multiplication");
		System.out.println("4. Division");
		
		int choice = scanner.nextInt();
		
		if (choice==1) {
			System.out.println("Result: "+ (num1+num2));
		}
		else if (choice==2)
		{
			System.out.println("Result: "+ (num1-num2));
		}
		else if (choice==3)
		{
			System.out.println("Result: "+ (num1*num2));
		}
		else if (choice==4)
		{
			if (num2!=0)
			{
				System.out.println("Result: "+ (num1/num2));
			}
			else
			{
				System.out.println("Error: Division by zero is not allowed");
			}
		} else {
			System.out.println("Invalid choice");
		}
		
		scanner.close();
		
		

	}



	}