CODEWITHSUNDEEP
java
twilding
twilding

Reputation: 145

Using a String for an instance object name

I have this code which gets info from an other class but I have to add another line other code for every instance object.

public static int giveShipData(String shipName,int Data){
    if(shipName.equals("Player")){i = Player.getData(Data);}
    return i;
}

Is it possible to have something like:

public static int giveShipData(String shipName,int Data){
    i = shipName.getData(Data);
    return i;
}

Sorry if I am using the wrong terminology I am self taught and new.

Upvotes: 0

Views: 813

Answers (3)

wax
wax

Reputation: 2431

I think you'd better to reconsider your design. If you have a ship name and ship data I assume you must have a Ship class which looks something like this:

public class Ship {
    private String name;
    private int data;

    public Ship(String name, int data) {
        this.name = name;
        this.data = data;
    }

    public String getName() {
        return name;
    }

    public int getData() {
        return data;
    }
}

Besides this class there should be a class like Shipyard:

 public class Shipyard {
    private Map<String, Ship> shipsByNameMap = new HashMap<String, Ship>();

    public void registerShipByName(String name, Ship ship){
        shipsByNameMap.put(name, ship);
    }

    public Ship getShipByName(String name){
        return shipsByNameMap.get(name);
    }
}

So, at first you invoke shipyard.getShip("Player") method to get ship object, than you can invoke ship.getData() method to retrieve ship data.

Upvotes: 2

Fox
Fox

Reputation: 9444

As per your code "shipName" is a string...and it does not have getData() method. And why are you passing Data to the getData()... You could instead write something like this-

 i = ClassObj.getData(shipname);

and in the method getData return the info regarding the "shipname".

Upvotes: 0

wattostudios
wattostudios

Reputation: 8764

You might be able to do something like this...

int[] ships = new int[3]; // 3 ships

public void populateShips(){
  for (int i=0;i<ships.length;i++){
    ships[i] = giveShipData(shipname,data);
    }
  }

public int giveShipData(String shipName,int data){
    return shipName.getData(data);
}

This would allow you to create any number of ships, just increase the size of the ships[] array to be however many ships you want.

Is this kinda what you're after?

Upvotes: 0

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