Programming Assignment #107

Code

import java.util.Scanner;

public class BabyCalculator
{
	public static void main( String[] args )
	{
		Scanner keyboard = new Scanner(System.in);

		double a, b, c;
		String op;

		do
		{
			System.out.print("> ");
			a  = keyboard.nextDouble();
			op = keyboard.next();
			b  = keyboard.nextDouble();
            
            if(a == 0){
                System.exit(0);
            }
            
			if ( op.equals("+") ){
				c = a + b;
            }
            else if(op.equals("-")){
                c = a - b;
            }
            else if(op.equals("*")){
                c = a * b;
            }
            else if(op.equals("/")){
                c = a / b;
            }
			else
			{
				System.out.println("Undefined operator: '" + op + "'.");
				c = 0;
			}

			System.out.println(c);

		} while ( true );
	}
}


  

Outputs