Assignment #25 and Dumb Calculator

Code

                        /// Name: Graham Pollock
                        /// Period: 5
                        /// Program Name: A Dumb Calculator
                        /// File Name: DumbCalculator.java
                        /// Date Finished: 10/5/2015
        
    import java.util.Scanner;
                 
        public class DumbCalculator
    {
             public static void main( String[] args )
             {
                 double one, two, three;
                 
                 Scanner keyboard = new Scanner(System.in);
                        System.out.println( " " ); 
                 System.out.print( "What's your first number?  " ); one = keyboard.nextDouble();
                        System.out.println( " " ); 
                 System.out.print( "What's your second number?  " ); two = keyboard.nextDouble();
                        System.out.println( " " ); 
                 System.out.print( "What's your third number?  " ); three = keyboard.nextDouble();
                        System.out.println( " " );
                        System.out.println( " " );
                 System.out.println( "( " + one + " + " + two + " + " + three + " ) /2 is:  " + ((one+two+three)/2) );
                        System.out.println( " " );
                        System.out.println( " " );
                 
             }
    }
    

Picture of the output