what is the use of getContentPane() in swings??What difference it makes?
posted 15 years ago
In short, the getContentPane() allows you to get a hand on the JPanel instance contained in a JFrame. It is handy when you want to add components, because you can not add components directy to a JFrame instance. Anyway if you try to do it, you won't get any compilation error or warning (If anybody can tell me why, I would be pleased) but a runtime error: java.lang.Error: Do not use Toto.add() use Toto.getContentPane().add() instead if Toto is an instance of JFrame. W. W.