Question

Check what I am missing

Start Page。 a! SpaceShip.java C Source History 6 package spaceshiptest; 9 10 * @author moe222 e public class Spaceship implements Comparable<Spaceship>f 13 14 15 16 17 18 19 201 무 21 曰 enum ShipType { ScoutShip, scienceVessel, construc tionVessel, private ShipType classification; String shipName; String captain; public spaceship (){ this.classification ShipType.Warship; this . shipName " Disaster "; this.captain"Captain King of The Fist" 23 24L 25 utput

Answer 1

Note: You missing the parameterized constructor, the modified code is highlighted below Program public class spaceship implements Comparable<spaceship> { enum ShipType ScoutShip, ScienceVessel, constructionVessel , Warship,original) private ShipType classification; String shipName; String captain; public SpaceShip () this.classification-Shiptype. Warshi this.shipName-"Disaster" this.captain-"Captain King of the Fist"; public Spacesh e c. String a.Stri this.classification-c.Warship: this.shipName-a: this.captain-b public static void main(String [l args) SpaceShip fist-new SpaceShip (ShipType.Scoutship, "Disaster""Captain fist") System.out.println (fist.tosString) SpaceShip power-new SpaceShip (ShipType.Warship, "Volcana", "Captain Power"); System.out println (power.tostring ()) System.out.println ("equals method invoked for object :"fist equals (power)) System.out.println ("equals method invoked for object :"fist. compareTo (power))

@override public int co mpareTo (SpaceShi p otherShip final int lessThan=-1; final int equalTo0 final int greaterThan-1; if (this.classification.ordinal () <otherShip.classification.ordina return lessThan; if (this.classification.ordinal ()otherShip.classification.ordin al )) return equalTo if (this.classification.ordinal () >otherShip.classification.ordina return greaterThan; return 0 /throw new UnsupportedOperationException ("Not supported yet.") //To change body of generated methods, choose Tools I Templates. Output Start Page X Output-JavaApplication25 (run) Spac un javaapplication25.SpaceShip 1db9742 javaapplication25.SpaceShip@106d69c equals method invoked for object :false equals method invoked or object :0 BUILD SUCC SSEUL 《total time : 0 econds )

Editable code

Program

public class SpaceShip implements Comparable<SpaceShip> {

   

    enum ShipType {ScoutShip,ScienceVessel,ConstructionVessel,Warship,original}

    private ShipType classification;

    String shipName;

    String captain;

     public SpaceShip()

    {

        this.classification=ShipType.Warship;

        this.shipName="Disaster";

        this.captain="Captain King of the Fist";

    }

   

   

    public SpaceShip(ShipType c,String a,String b )

    {

        this.classification=c.Warship;

        this.shipName=a;

        this.captain=b;

    }

   

   public static void main(String[] args) {

      SpaceShip fist=new SpaceShip(ShipType.ScoutShip,"Disaster","Captain fist");

      System.out.println(fist.toString());

      SpaceShip power=new SpaceShip(ShipType.Warship,"Volcana","Captain Power");

      System.out.println(power.toString());

       System.out.println("equals method invoked for object :"+fist.equals(power));

       System.out.println("equals method invoked for object :"+fist.compareTo(power));

   }

     

    @Override

    public int compareTo(SpaceShip otherShip) {

        final int lessThan=-1;

        final int equalTo=0;

        final int greaterThan=1;

        if(this.classification.ordinal()<otherShip.classification.ordinal())

            return lessThan;

         if(this.classification.ordinal()==otherShip.classification.ordinal())

            return equalTo;

          if(this.classification.ordinal()>otherShip.classification.ordinal())

            return greaterThan;

       

           return 0;

     //   throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.

    }

}