Question

I am making a game, I have got several different classes as I dont like to put everything in one. I have a GameView class and a players class. The problem is that I am calling a method in players class from GameView. But its giving me an null pointer error. Below is my code:

GameVie class:

Panel p2 = new Panel();
p2.setLayout(new BorderLayout());
JLabel player1Lbl = new JLabel("Player 1");
p2.add(player1Lbl, BorderLayout.WEST);
player.enterNameP1(); //Having an error here.
player1Lbl.setText(player.enterNameP1());

Players Class:

public class Players
{
    //storing the player 1 name
    private String p1name;
    //storing the player 2 name
    private String p2name;

    /**
     * Constructor for objects of class Players
     */
    public Players()
    {
        this.p1name = p1name;
        this.p2name = p2name;
    }

    /**
     *Enter the player 1 name in a dialog box
     */
    public String enterNameP1() //It was public void before but it wasnt accepting a void method in the gameView so I changed it to String
    {
        this.p1name = JOptionPane.showInputDialog("Please enter player 1 name","Specify name");
        return p1name;
    }

Answer 1

you should initialized player first….. ?

Players player = new Players();