Assignemnt #69 Baby Calculator

Code

/// Name: JJ Deng
/// Period: 6
/// Program Name: Baby Calculator
/// File Name: BabyCalc.java
/// Date Finished: 1/15/2016
  
    
import java.util.Scanner;

public class BabyCalc
{
	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 ( 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 (a!= 0 && b!=0 );
	}
}
  

Picture of the output