Assignemnt #107 and Baby Calculator

Code

  /// Name: Marco Correa
  /// Period: 5
  /// Program Name: Baby Calculator
  /// File Name: Baby Calculator.java
  /// Date Finished: 4/1/2016



  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 ( a == 0 )
			  {
				  System.out.println( "Bye, now." );
				  break;
			  }
			
			  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 );
	  }
  }


    

Picture of the output