Java repaint not updating new dating site in united state

This is because they are designed to work in a wide variety of circumstances, and they interact in a non-obvious fashion.This happens in several contexts in Java, but GUIs are the most obvious.(JFrame - JPanel - Buffered Image loaded by JButton, Action Listener and JFile Chooser) I achieved most parts, but my JPanel doesn't refresh promptly.

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The designers of Java wanted Java programs to be able to run on any machine that had a Java VM.

So, a particular program might be running on a desktop machine, or a laptop, or a hand-held machine, like a personal assistant or a phone.

Actually most setter methods invoke revalidate()/repaint() just to be safe I guess.

So I guess if you really want to generalize you should always invoke those methods. When I added revalidate() method to my code, it worked after I resized my window once after program's launch.

However, if you do use custom painting, then you should be overriding the paint Component() method, NOT paint(). Also, paint Component() should be called instead of paint().

YOu would also need code to calculate the preferred size of your component and you would need to invoke revalidate() and repaint() on the component. paint Component() will only paint the component which update the Graphics, not the entire Top Level container.

When you extend a Component (like when you write a Applet), if you want to display it differently than its superclass, you override public void paint(Graphics) .

This was first illustrated in Chapter 3, iii) repaint() The repaint() method is sent to a Component when it needs to be repainted.

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When a Container, like a Frame, is painted, all of its Components (Buttons, Text Fields, whatever) must be repainted.

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