import javax.swing.Icon; import javax.swing.ImageIcon; import javax.swing.JButton; import javax.swing.JFrame; public class IconButton { public static void main(String args[]) { JFrame frame = new JFrame("DefaultButton"); frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); Icon warnIcon = new ImageIcon("yourFile.gif"); JButton button2 = new JButton(warnIcon); frame.add(button2); frame.setSize(300, 200); frame.setVisible(true); } }