Hey, I've got some code that is supposed to paint part of an image on a JPanel. Unfortunately, when I run it, I get a nullPointer Exception.
- public void paintMap()
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{
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Graphics g = this.getGraphics(); //Create a new Graphics object.
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Graphics2D g2d = (Graphics2D) g; //Cast it to a Graphics2D object (Has more options)
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Image spaceImages = Toolkit.getDefaultToolkit().getImage ( "stars.png" );
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System.out.println(spaceImages.getWidth(null)); //Returns -1. Is that a problem?
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g2d.drawImage(spaceImages, 0, 0, 50, 50, 0, 0, 50, 50, null);
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//more code
The error occurs on the last line of code (Line 7), but I wonder if I'm not creating the image correctly, as when I try to get the width of the image it returns -1 (on line 6). Any thoughts?
