Assignemnt 38 and Space Boxing

Code

    /// Name: Xinting Chen
    /// Period: 5
    /// Program Name: Space Boxing
    /// File Name: SpaceBoxing.java
    /// Date Finished: 10/27/2015
  
   import java.util.Scanner;
    
    public class SpaceBoxing
    {
        public static void main( String[] args )
        {
            Scanner keyboard = new Scanner(System.in);
            
            double weightEarth, planet, V, M, J, S, U, N;
            V= 0.78;
            M= 0.39;
            J= 2.65;
            S= 1.17;
            U= 1.05;
            N= 1.23;
            
            
            System.out.print( "Please enter your current earth weight: ");
            weightEarth = keyboard.nextDouble();
            
            System.out.println();
            
            System.out.println("I have 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.print("Which planet are you visiting?");
            planet = keyboard.nextDouble();
            
            if (planet == 1)
                             {
                                 System.out.println("Your weight would be " + (weightEarth*V)+"pounds on that planet.");
                             }
            else if (planet == 2)
                             {
                                 System.out.println("Your weight would be " + (weightEarth*M)+"pounds on that planet.");
                             }
            else if (planet == 3)
                             {
                                 System.out.println("Your weight would be " + (weightEarth*J)+"pounds on that planet.");
                             }
            else if (planet == 4)
                             {
                                 System.out.println("Your weight would be " + (weightEarth*S)+"pounds on that planet.");
                             }
            else if (planet == 5)
                             {
                                 System.out.println("Your weight would be " + (weightEarth*U)+"pounds on that planet.");
                             }
            else if (planet == 6)
                             {
                                 System.out.println("Your weight would be " + (weightEarth*N)+"pounds on that planet.");
                             }
                             
             }
        }
    

Picture of the output