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JPanel panel = new JPanel() {
public void setBackground(Color c) {
Logger.global.info("setBackground: c=" + c);
super.setBackground(c);
}
};
I only know I can do JPanel panel = new JPanel();
Why can someone do the above? What’s the name for it?
It is called an anonymous class.
That code basically creates a subclass of
JPanel“on the fly” without giving it a name (thus the term anonymous class) and instantiates it.Related questions and links: