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Tip of the Day
Language: Java
Expertise: Intermediate
Oct 27, 1998



Application Security Testing: An Integral Part of DevOps

Using Swing to Add Tool Tips

Using Swing, you can easily add tool tips to any of the components in your GUI. Tool tips aren't normally visible, but they become visible when you point at the component with the mouse. This code was tested using JDK1.1.6 and Swing 1.0.3 under Win95:
import java.awt.*;
import java.awt.event.*;
import com.sun.java.swing.*;

public class SwingToolTip01 extends JFrame {

	public static void main(String args[]) {
		new SwingToolTip01();
	}//end main()
	SwingToolTip01() {//constructor
		setTitle("Tool Tips");
		getContentPane().setLayout(new FlowLayout());

		//Create two buttons with no action listeners
		JButton myJButton = new JButton("myButton");
		//Put a tool tip on the button
		myJButton.setToolTipText("My JButton");
		JButton urJButton = new JButton("urButton");
		//Put a tool tip on the button
		urJButton.setToolTipText("Ur JButton");

		// Inner class WindowAdapter to terminate the
		// program when the JFrame is closed.
		addWindowListener(new WindowAdapter() {
			public void windowClosing(WindowEvent e) {
				System.exit(0);}});//end WindowListener
	}//end constructor
}//end class SwingToolTip01
Richard G.
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