The UIManager.getSystemLookAndFeelClassName() method return the current system look and feel for Swing application. Do not forget to call the SwingUtilities.updateComponentTreeUI() method after setting the LAF to update the current application look and feel.

package org.kodejava.example.swing;

import javax.swing.JFrame;
import javax.swing.SwingUtilities;
import javax.swing.UIManager;
import javax.swing.WindowConstants;

public class SystemLAFDemo {
    public static void main(String[] args) {
        JFrame frame = new JFrame();
        frame.setSize(250, 250);
        frame.setDefaultCloseOperation(WindowConstants.EXIT_ON_CLOSE);
        frame.setTitle("System LAF Demo");

        try {
            // Use the system look and feel for the swing application
            String className = UIManager.getSystemLookAndFeelClassName();
            System.out.println("className = " + className);
            UIManager.setLookAndFeel(className);
        } catch (Exception e) {
            e.printStackTrace();
        }

        SwingUtilities.updateComponentTreeUI(frame);
        frame.setVisible(true);
    }
}

• Author
• Recent Posts

Wayan

Founder at Kode Java Org

I am a programmer, a runner, a recreational diver, currently live in the island of Bali, Indonesia. Mostly programming in Java, Spring Framework, Hibernate / JPA. If these posts help, you can support me, buy me a cup of coffee or tea. Thank you 🥳

Latest posts by Wayan (see all)

• How do I install Calibri font in Ubuntu? - January 24, 2021
• How do I create a generic class in Java? - January 1, 2021
• How do I convert java.util.TimeZone to java.time.ZoneId? - April 25, 2020