自动完成不适用于Eclipse中的paintComponent（Graphics g）

Question

为什么“ Control + Space”自动完成帮助不适用于paintComponent（）方法，需要完全输入？

Answer 1

Its because there might be an ambiguity between the paintcomponent of AWT/Swing and the parameters that it needs consists of 1D and 2D graphics. You might have imported both of them.

Answer 2

Probably error. In case of error sometimes eclipse didn't show error, but in result members aren't listed for auto complete.