What does "Toolkit.getDefaultToolkit().sync()" mean? [closed]

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I got three rather small questions so I'd like to ask them all in one thread here.

1- What does Toolkit.getDefaultToolkit().sync() mean?

2- What does g.dispose() do? (g is a Graphics object).

3- What does this: setDoubleBuffered(true) mean?

All of the above happen in a class extending JPanel.

Thanks

Answer 1

• sync() - sunchronizes the graphics state

• dispose() - Disposes of this graphics context and releases any system resources that it is using. A Graphics object cannot be used after disposehas been called.

• setDoubleBuffered() - Sets whether this component should use a buffer to paint. If set to true, all the drawing from this component will be done in an offscreen painting buffer. The offscreen painting buffer will the be copied onto the screen. If a Component is buffered and one of its ancestor is also buffered, the ancestor buffer will be used.

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