Assignemnt 107 and BabyCalculator2

Code

    /// Name: Xinting Chen
    /// Period: 7
    /// Program Name: Baby Calculator 2
    /// File Name: BabyCalculator2.java
    /// Date Finished: 4/29/2016
  
        import java.util.Scanner;
        
        public class BabyCalculator2
        {
        	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 );
        	}
        } 


        
        

    

Picture of the output