Phần Loading trong Java (JProgressBar)

    private void btClickActionPerformed(java.awt.event.ActionEvent evt) {
        // TODO add your handling code here:
        tt.start();
    }
    Thread tt = new Thread() {
        public void run() {
            tfRun.setText("Không được mà");
            for (int i = 1; i <= 10; i++) {
                tfRun.setText(String.valueOf(i));
                pbLoading.setValue(i * 10);
                System.out.println(" " + i);
                try {
                    Thread.sleep(1000);
                } catch (InterruptedException ex) {
                    Logger.getLogger(test.class.getName()).log(Level.SEVERE, null, ex);
                }
                System.out.println("");//ok, van de la tai GUi bi dung'
            }
        }
    };