Swing JPanel Container Class

Overview

In this tutorial, we will learn about Swing JPanel Container Class. JPanel class is a lightweight container.

JPanel Container Class

JPanel is a subclass of an abstract class JComponent and implements an Accessible interface.

Java Program

package com.testingdocs.swing.components;

import java.awt.*; 
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;

/**********************************************
 * FileName: JPanelDemo.java
 * Package : com.testingdocs.swing.components
 * 
 * Java Tutorials - www.TestingDocs.com
 **********************************************/

public class JPanelDemo {
 public static void main(String[] args) {

 JFrame frame = new JFrame("JPanelDemo");
 JPanel panel = new JPanel();
 panel.setLayout(new FlowLayout());
 JLabel greeting = new JLabel("Hello World!\n");
 JLabel websiteLabel = new JLabel("www.TestingDocs.com");
 
 //add labels to panel
 panel.add(greeting);
 panel.add(websiteLabel);

 //Frame properties
 frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
 frame.setSize(400, 300);
 frame.getContentPane().add(panel);
 frame.setVisible(true);
 }
}