Java tutorial
import java.awt.Color; import java.awt.Container; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.border.Border; import javax.swing.border.CompoundBorder; public class MainClass { public static void main(final String args[]) { JFrame frame = new JFrame("Justified Titled Borders"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Border greenBorder = BorderFactory.createLineBorder(Color.GREEN, 2); Border blueBorder = BorderFactory.createLineBorder(Color.BLUE, 2); Border magentaBorder = BorderFactory.createLineBorder(Color.MAGENTA, 2); Border twoColorBorder = new CompoundBorder(magentaBorder, blueBorder); Border threeColorBorder = new CompoundBorder(twoColorBorder, greenBorder); JButton rainbowButton = new JButton("Rainbow"); rainbowButton.setBorder(threeColorBorder); Container contentPane = frame.getContentPane(); contentPane.add(rainbowButton); frame.setSize(300, 200); frame.setVisible(true); } }