Assignemnt #73 and Baby Calculator

Code

    
    ///Name: Daniel Rhees
    ///Period: 5
    ///Project Name: Baby Calculator
    ///File Name: BabyCalculator.java
    ///Date: 1/14/2016
    
    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 ( op.equals("+") )
                  c = a + b;
                else
                {
                    System.out.println("Undefined operator: '" + op + "'.");
                    c = 0;
                }
                
                System.out.println(c);
                
            } while ( true );
        }
    }
    

Picture of the output

Assignment 73