Swing >> Problemas

e ai galera…
seguinte eu to com uns problemas com o swing aqui…toda vez que coloco pra executar algo, como por exemplo um progress bar (feito atraves do netbeans) ele fica tipo desabilitado sem poder fazer nada com o jframe…

peguei um exemplo de progress bar na internet e funcionou normal
o que pode ser?

[code]/*

  • NewJFrame.java
  • Created on 18 de Outubro de 2008, 16:44
    */

package javaapplication1;

import javax.swing.SwingUtilities;

/**
*

  • @author Jonny
    */
    public class NewJFrame extends javax.swing.JFrame {

    /** Creates new form NewJFrame */
    public NewJFrame() {
    initComponents();
    }

    /** This method is called from within the constructor to

    • initialize the form.

    • WARNING: Do NOT modify this code. The content of this method is

    • always regenerated by the Form Editor.
      */
      //
      private void initComponents() {

      botao = new javax.swing.JButton();
      pbar = new javax.swing.JProgressBar();

      setDefaultCloseOperation(javax.swing.WindowConstants.EXIT_ON_CLOSE);

      botao.setText(“botao”);
      botao.addActionListener(new java.awt.event.ActionListener() {
      public void actionPerformed(java.awt.event.ActionEvent evt) {
      botaoActionPerformed(evt);
      }
      });

      javax.swing.GroupLayout layout = new javax.swing.GroupLayout(getContentPane());
      getContentPane().setLayout(layout);
      layout.setHorizontalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
      .addGroup(layout.createSequentialGroup()
      .addGroup(layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
      .addGroup(layout.createSequentialGroup()
      .addGap(139, 139, 139)
      .addComponent(botao))
      .addGroup(layout.createSequentialGroup()
      .addGap(96, 96, 96)
      .addComponent(pbar, javax.swing.GroupLayout.PREFERRED_SIZE, javax.swing.GroupLayout.DEFAULT_SIZE, javax.swing.GroupLayout.PREFERRED_SIZE)))
      .addContainerGap(158, Short.MAX_VALUE))
      );
      layout.setVerticalGroup(
      layout.createParallelGroup(javax.swing.GroupLayout.Alignment.LEADING)
      .addGroup(javax.swing.GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
      .addContainerGap(149, Short.MAX_VALUE)
      .addComponent(botao)
      .addGap(38, 38, 38)
      .addComponent(pbar, javax.swing.GroupLayout.PREFERRED_SIZE, 40, javax.swing.GroupLayout.PREFERRED_SIZE)
      .addGap(50, 50, 50))
      );

      pack();
      }//

    private void botaoActionPerformed(java.awt.event.ActionEvent evt) {
    int minimo = 1;
    int maximo = 5;
    pbar.setMinimum(minimo);
    pbar.setMaximum(maximo);
    for (int i = minimo; i <= maximo; i++) {
    final int percent = i;
    try {
    SwingUtilities.invokeLater(new Runnable() {
    public void run() {
    pbar.setValue(percent);
    }
    });
    Thread.sleep(1000);
    } catch (InterruptedException e) {

     	}
     }
    

}

/**
 * @param args the command line arguments
 */
public static void main(String args[]) {
	java.awt.EventQueue.invokeLater(new Runnable() {
		public void run() {
			new NewJFrame().setVisible(true);
		}
	});
}

// Variables declaration - do not modify
private javax.swing.JButton botao;
private javax.swing.JProgressBar pbar;
// End of variables declaration

}
[/code]

Quando mexo com interfaces e vou fazer alguma tarefa, como acessar um banco ou algum processamento um pouco maior, coloco isso numa Thread separada para não ter esse problema de tratamento. Tente fazer o mesmo apra ver se nao da certo…