java

import java.util.Scanner;
class SimpleCalculator
{
	public static void main(String[] args) 
	{
		Scanner sc = new Scanner(System.in);
		System.out.println("==================================");
		System.out.println("	Simple clculator");
		int exit = 1;
		do
		{
			System.out.println("==================================");
			System.out.println("Enter 1 for addition");
			System.out.println("Enter 2 for Subtraction");
			System.out.println("Enter 3 for multiplication");
			System.out.println("Enter 4 for division(quotient)");
			System.out.println("Enter 5 for division(remainder)");
			System.out.println("==================================");
			System.out.print("Enter your choice : ");
			int choice = sc.nextInt();
			System.out.println("==================================");
			System.out.print("Enter first number : ");
			int a = sc.nextInt();
			System.out.print("Enter second number :");
			int b = sc.nextInt();
			System.out.println("==================================");
			switch (choice)
			{
				case 1 :
				{
					System.out.println("You have chosen Addition");
					System.out.println("Answer is : "+(a+b));
				}
					break;
				case 2 :
				{
					System.out.println("You have chosen subtraction");
					System.out.println("Answer is : "+(a-b));
				}
					break;
				case 3 :
				{
					System.out.println("You have chosen multiplication");
					System.out.println("Answer is : "+(a*b));
				}
					break;
				case 4 :
				{
					System.out.println("You have chosen division(quotient)");
					System.out.println("Answer is : "+(a/b));
				}
					break;
				case 5 :
				{
					System.out.println("You have chosen division(remainder)");
					System.out.println("Answer is : "+(a%b));
				}
					break;
				default : System.out.println("Enter valid input");
			}
			System.out.println("Enter 1 to continue");
			System.out.println("Enter 0 to exit");
			System.out.print("Enter here : ");
			exit = sc.nextInt();
		}
		while (exit==1);
		System.out.println("==================================");
		System.out.println("	Thank you..!!");
		System.out.println("==================================");
	}
}