import java.awt.BorderLayout; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.swing.BorderFactory; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.SwingConstants; public class MainClass extends JFrame { public MainClass() { setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); JPanel p = new JPanel(new BorderLayout()); p.setBorder(BorderFactory.createEmptyBorder(10, 10, 10, 10)); JButton b = new JButton("Test"); b.setHorizontalTextPosition(SwingConstants.LEFT); b.setIcon(new ImageIcon("red-ball.gif")); b.setRolloverIcon(new ImageIcon("blue-ball.gif")); b.setRolloverEnabled(true); b.setMnemonic('t'); b.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { System.out.println("Button pressed"); } }); p.add(b); getContentPane().add(p); pack(); } public static void main(String[] args) { MainClass sb = new MainClass(); sb.setVisible(true); } }