How to add a tooltip to a component in Java?

Java 8 Object Oriented Programming Programming

Complete Java Programming Fundamentals With Sample Projects

Emenwa Global, Ejike IfeanyiChukwu

More Detail

Get your Java dream job! Beginners interview preparation

Yuval Ishay

More Detail

Core Java bootcamp program with Hands on practice

Featured

Prashant Mishra

More Detail

Let us first create a component −

JLabel label1;
label1 = new JLabel("Id", SwingConstants.CENTER);
Now, set the tooltip for the above component −
label1.setToolTipText("Enter Id");

Example

The following is an example to add a tooltip to a component in Java −

package my;
import java.awt.GraphicsEnvironment;
import java.awt.GridLayout;
import java.awt.Point;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;
import javax.swing.SwingConstants;
public class SwingDemo {
   public static void main(String[] args) throws Exception {
      JFrame.setDefaultLookAndFeelDecorated(true);
      JFrame frame = new JFrame("Register!");
      JLabel label1, label2, label3;
      frame.setLayout(new GridLayout(2, 2));
      label1 = new JLabel("Id", SwingConstants.CENTER);
      label1.setToolTipText("Enter Id");
      label2 = new JLabel("Age", SwingConstants.CENTER);
      label2.setToolTipText("Enter Age");
      label3 = new JLabel("Password", SwingConstants.CENTER);
      label3.setToolTipText("Enter Password");
      JTextField emailId = new JTextField(20);
      JTextField age = new JTextField(20);
      JPasswordField passwd = new JPasswordField();
      passwd.setEchoChar('*');
      frame.add(label1);
      frame.add(label2);
      frame.add(label3);
      frame.add(emailId);
      frame.add(age);
      frame.add(passwd);
      Point center = GraphicsEnvironment.getLocalGraphicsEnvironment().getCenterPoint();
      int width = 500;
      int height = 200;
      frame.setBounds(center.x - width / 2, center.y - height / 2, width, height);
      frame.setVisible(true);
   }
}