Tela de Splash

package br.com.biblio;

import java.awt.BorderLayout;
import java.awt.EventQueue;
import javax.swing.JFrame;
import javax.swing.JPanel;
import javax.swing.border.EmptyBorder;
import java.awt.Window.Type;
import java.awt.Color;
import javax.swing.JLabel;
import java.awt.Font;
import javax.swing.GroupLayout;
import javax.swing.GroupLayout.Alignment;
import javax.swing.JWindow;
import javax.swing.SwingConstants;
import javax.swing.JProgressBar;
import javax.swing.ImageIcon;
import javax.swing.JTextField;

public class TelaSplash extends JFrame {

	private JPanel contentPane;

	public static void main(String[] args) {
		EventQueue.invokeLater(new Runnable() {
			public void run() {
				try {
					TelaSplash frame = new TelaSplash();
					frame.setVisible(true);
				} catch (Exception e) {
					e.printStackTrace();
				}
			}
		});
	}

	public TelaSplash() {
		// Desabilitar a Barra
		setUndecorated(true);
		setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
		setBounds(100, 100, 450, 300);
		// Centralizar o JFrame
		setLocationRelativeTo(null);
		contentPane = new JPanel();
		contentPane.setBackground(new Color(255, 69, 0));
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);
		
		JLabel JLabel1 = new JLabel("BiblioOnBase");
		JLabel1.setHorizontalAlignment(SwingConstants.RIGHT);
		JLabel1.setForeground(new Color(255, 255, 255));
		JLabel1.setBackground(new Color(255, 255, 255));
		JLabel1.setFont(new Font("Comic Sans MS", Font.BOLD, 48));
		JLabel1.setBounds(10, 11, 430, 278);
		contentPane.add(JLabel1);
		
		JProgressBar JProgressBar1 = new JProgressBar();
		JProgressBar1.setBounds(10, 275, 430, 14);
		contentPane.add(JProgressBar1);
		
		JLabel JLabel2 = new JLabel("");
		JLabel2.setIcon(new ImageIcon(TelaSplash.class.getResource("/br/com/biblio/Logo.png")));
		JLabel2.setBounds(10, 45, 128, 128);
		contentPane.add(JLabel2);
		
		JLabel JLabel3 = new JLabel("Carregando");
		JLabel3.setForeground(new Color(255, 255, 255));
		JLabel3.setFont(new Font("Comic Sans MS", Font.BOLD, 24));
		JLabel3.setHorizontalAlignment(SwingConstants.CENTER);
		JLabel3.setBounds(10, 184, 430, 80);
		contentPane.add(JLabel3);
		
		JLabel JLabel4 = new JLabel("100 %");
		JLabel4.setHorizontalAlignment(SwingConstants.CENTER);
		JLabel4.setForeground(new Color(255, 255, 255));
		JLabel4.setFont(new Font("Comic Sans MS", Font.BOLD, 12));
		JLabel4.setBounds(10, 250, 430, 14);
		contentPane.add(JLabel4);
		
		//Utilizando a ProgressBar
		
		for (int i = 0; JProgressBar1.getValue() != 100; i++) {
			JProgressBar1.setValue(i);
			JLabel4.setText(JProgressBar1.getValue() + "%");
		}
		
		if (JProgressBar1.getValue() == 100) {
			dispose();
			new TelaPrincipal().setVisible(true);
		}
	}
}