What is Java Swing and its methods

Use of Java Swing

The Swing API is used by developers to create Java-based Front End/GUI applications. The Swing API is used as a substitute for the AWT API.

In Java, the Javax.swing package provides classes for the Swing API such as:

• JButton
• JComboBox
• JList
• JTabbedPane
• JToolbar
• JTextArea
• JRadioButton
• JPasswordField

Properties of Java Swing

1. Platform Independent

Swing components are platform-independent, meaning they can run on any operating system.

2. Light Weight

Since Swing components are written entirely in Java, they are light weight.

3. Controls

Swing has many good controls like:

• Tree
• TabbedPane
• Slider
• ColorPicker
• Table Controls

4. Customize

We can easily customize Swing controls.

5. Look and Feel

The look and feel of a Swing-based application can also be changed at runtime.

Methods of Java Swing Components Classes

A Simple Program of Java Swing

import javax.swing.JFrame;
import javax.swing.SwingUtilities;

public class App {
    public static void main(String[] args) {
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                JFrame frame = new JFrame("Hello World Swing!");
                frame.setSize(500, 400);
                frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
                frame.setVisible(true);
            }
        });
    }
}