WindowInformatika.java

import javax.swing.SwingUtilities;
import java.awt.BorderLayout;
import javax.swing.JPanel;
import javax.swing.JFrame;

public class WindowInformatika extends JFrame {

	private JPanel jContentPane = null;

	public static void main(String[] args) {
		SwingUtilities.invokeLater(new Runnable() {
			public void run() {
				WindowInformatika thisClass = new WindowInformatika();
				thisClass.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
				thisClass.setVisible(true);
			}
		});
	}

	/**
	 * This is the default constructor
	 */
	public WindowInformatika() {
		super();
		initialize();
	}

	private void initialize() {
		this.setSize(600, 400);
		this.setContentPane(getJContentPane());
		this.setTitle("INFORMATIKA APP");
		this.setLocationRelativeTo(null);
	}

	private JPanel getJContentPane() {
		if (jContentPane == null) {
			jContentPane = new JPanel();
			jContentPane.setLayout(new BorderLayout());
		}
		return jContentPane;
	}

}