Greenfoot

rockon411 wrote ...

2017/3/29

Need Help with Adding an Object

rockon411

2017/3/29

I am trying to add an object from another class

public void addMinnow()
    {
        Island island = (Island) getWorld();
        island.add(new Minnow(), this.getGridX(), this.getGridY());
    }

This is the code that I am using, but I am getting a NullPointerException error regarding line 4.

Nosson1459

2017/3/29

If you call this method when this class isn't in the world then getWorld() will return null.

rockon411

2017/3/29

THANKS! I really needed that!

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