Java tutorial
import java.awt.BorderLayout; import java.awt.Container; import javax.swing.BorderFactory; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.border.Border; public class AnEmptyBorder { public static void main(String args[]) { JFrame frame = new JFrame("Empty Borders"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Border emptyBorder = BorderFactory.createEmptyBorder(20, 20, 0, 0); JButton emptyButton = new JButton("With Empty"); emptyButton.setBorder(emptyBorder); JButton nonemptyButton = new JButton("Without Empty"); Container contentPane = frame.getContentPane(); contentPane.add(emptyButton, BorderLayout.NORTH); contentPane.add(nonemptyButton, BorderLayout.SOUTH); frame.pack(); frame.setSize(300, frame.getHeight()); frame.setVisible(true); } }