How to change the look of a button in Java

i've searched a bit and i couldn't seem to find this question asked specifically for Java. 开发者_开发百科I'm trying to change the Look and Feel of a JButton and the looks of other elements like JTextFields and JComboBox. To make my question clearer, i'm not trying to change the color or the shape of my button. I want to the change the "interface", i guess that's a good way to put it. Java has a default "LaF" for JButtons and other elements, how do i change that?

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Read How to Set the Look and Feel.

Next time google your question first.