import java.awt.FlowLayout; import java.awt.HeadlessException; import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.ToolTipManager; public class Main extends JFrame { public Main() throws HeadlessException { setSize(300, 300); setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); getContentPane().setLayout(new FlowLayout(FlowLayout.CENTER)); JButton disable = new JButton("DISABLE"); disable.setToolTipText("disabled."); disable.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { ToolTipManager.sharedInstance().setEnabled(false); } }); JButton enable = new JButton("ENABLE"); enable.setToolTipText("enabled."); enable.addActionListener(new ActionListener() { public void actionPerformed(ActionEvent e) { ToolTipManager.sharedInstance().setEnabled(true); } }); getContentPane().add(enable); getContentPane().add(disable); } public static void main(String[] args) { new Main().setVisible(true); } }