Review

Calls JFrame.setVisible(true) before JFrame.pack(). This may lead to undesired effects, such as the window being moved to the default plattform location.

Call JFrame.pack() before JFrame.setVisible(true).

• misplaced/call

PackAfterVisible.java

misuse(JFrame)

class PackAfterVisible {
	public void misuse(JFrame f) {
		f.setVisible(true);
		f.pack();
	}

}