How do i change the UI of a JComboBox

Answer 1

you need to change arrow image , and in style change background for this JComboBox !

Answer 2

You have to write your own ComboBoxUI class. I suggest to look at either Synth or Nimbus Look and Feel to make it easier.

Answer 3

use WindowsLookAndFeel;

this works if and only if you are running your application in winows;

in your main you can do this before creating any UI:

try{
    UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
}catch(Exception ignore){
}