Java tutorial
import java.awt.BorderLayout; import java.awt.Color; import javax.swing.JButton; import javax.swing.JFrame; public class Main { public static void main(String args[]) { JFrame f = new JFrame("JColorChooser Sample"); f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); final JButton button = new JButton("Pick to Change Background"); Color myBlack = new Color(0, 0, 0); // Color black // Color myWhite = new Color(255,255,255); // Color white // Color myGreen = new Color(0,200,0); // A shade of green button.setBackground(myBlack); f.add(button, BorderLayout.CENTER); f.setSize(300, 200); f.setVisible(true); } }