JavaNullPointer for image

Question

I have this code for my player class:

public class Player {

private static Image front;

int posX = 400;
int posY = 300;

public void player() throws SlickException{
    init(null, null);
    render(null, null, null);
    update(null, null, (Integer) null);

}

public void init(GameContainer gc, StateBasedGame sbg) throws SlickException {
    front = new Image("res/steveFront.png");
}

public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException {
    front.draw(posX, posY);
}

public void update(GameContainer gc, StateBasedGame sbg, int delta) throws SlickException {

}

}

And this is my main game class:

public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException {
    map.render(gc, sbg, g);
    player.render(gc, sbg, g);
}

When I run the code it calls a javanullpointer exception on the

public void render(GameContainer gc, StateBasedGame sbg, Graphics g) throws SlickException {
    front.draw(posX, posY);
}

Why does it do this? I've been trying to figure this out for hours now. Any help would be appreciated!

It seems to me that `front` is `null`. Did `front` get properly initialized in the `init()` method? That is, was it able to find `res/steveFront.png` and was that correctly processed into an instance of `Image`? — Peter Gluck, Nov 09 '12 at 00:46
Yes, everything is coded correctly, however it just doesn't want to work. I have drawn a map using an array the same way. I have no clue as to why it just won't work. — , Nov 09 '12 at 00:51
@case1532 I can't believe I haven't thought of that... It worked, post it as an answer! — , Nov 09 '12 at 00:53

score 1 · Answer 1 · answered Nov 09 '12 at 00:49

1

Usually this means the path you give for the image is wrong

 front = new Image("res/steveFront.png")

If this is in your src folder, you have to use getResource

answered Nov 09 '12 at 00:49

thedayofcondor

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I'm using slick2d which has a resource manager built in, no need for any getResources methods. Thanks though! The problem has been solved. – Nov 09 '12 at 00:54

score 0 · Accepted Answer · answered Nov 09 '12 at 00:56

0

Try making variable 'front' not static

answered Nov 09 '12 at 00:56

case1352

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JavaNullPointer for image

2 Answers2