import java.awt.BorderLayout;
import java.awt.Container;
import javax.swing.JButton;
import javax.swing.JFrame;
public class ButtonTipTest {
public static void main(String args[]) {
JFrame frame = new JFrame("Tool Tips");
Container contentPane = frame.getContentPane();
JButton b = new JButton("Button");
b.setToolTipText("Go Away");
contentPane.add(b, BorderLayout.NORTH);
frame.setSize(300, 200);
frame.show();
}
}