private void showProgressBar() {
		headerLabel.setText("Client Server App");

		progressBar = new JProgressBar(0, 100);
		progressBar.setValue(0);
		progressBar.setStringPainted(true);
		startButton = new JButton("Start");

		outputTextArea = new JTextArea("", 5, 30);

		JScrollPane scrollPane = new JScrollPane(outputTextArea);
		startButton.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				outputTextArea.setText("");
				progressBar.setValue(0);

				startButton.setEnabled(false);
				try {
					client.sendWords();
				} catch (InterruptedException e1) {
					e1.printStackTrace();
				}
			}
		});

		controlPanel.add(startButton);
		controlPanel.add(progressBar);
		controlPanel.add(scrollPane);
		mainFrame.setVisible(true);
	}