Assignemnt #38 and Space Boxing

Code

 /// Name: Mark Katz
    /// Period: 6
    /// Program Name: Space Boxing
    /// File Name: SpaceBoxing.java
    /// Date Finished: 9/28/15  


import java.util.Scanner;
  public class SpaceBoxing
 {
     public static void main( String[] args )
     {
         Scanner keyboard = new Scanner(System.in);
         
         double weight, weight2=0;
         int planetName;
         
         System.out.println( "Please print out your current earth weight: " );
         weight = keyboard.nextDouble();
         
         System.out.println( "" );
         System.out.println( "I have the information for the following planets: " );
         System.out.println( "   1. Venus    2. Mars    3. Jupiter " );
         System.out.println( "   4. Saturn   5. Uranus  6. Neptune " );
         System.out.println( "" );
         
         System.out.println( "Which planet are you visiting?" );
         planetName = keyboard.nextInt();
         
         if ( planetName == 1)
         {
             weight2 = weight*0.78;
         }
         else if ( planetName == 2)
         {
             weight2 = weight*0.39;
         }
         else if ( planetName == 3)
         {
             weight2 = weight*2.65;
         }
         else if ( planetName == 4)
         {
             weight2 = weight*1.17;
         }
         else if ( planetName == 5)
         {
             weight2 = weight*1.05;
         }
         else if (planetName == 6)
         {
             weight2 = weight*1.23;
         }
         
         System.out.println( "" );
         System.out.println( "Your weight would be " + weight2 + " pounds on that planet." );
        }
  }
    

Picture of the output