public class CaThread implements Runnable {

	static double sum = 1;
	static String str = "1!";
	static int n = 1;
	Thread thread;//執行緒類物件

	public CaThread() {
		thread = new Thread(this);//呼叫本類物件
		thread.start();
	}

	double plus(int n) {
		sum = 1;
		for (int i = 1; i <= n; i++)
			sum *= i;
		return sum;
	}
 

public class ReadThread extends Thread {
	CaThread caThread;

	public ReadThread(CaThread caThread) {
		this.caThread = caThread;//呼叫CaThread構造器
	}

	public void run() {

		try {
			while (true) {
				sleep(1000);
				ThreadGUI.textArea.setText(caThread.str);
				ThreadGUI.textField.setText(caThread.sum + "");
				ThreadGUI.progressBar.setValue(caThread.n);
			}
		} catch (InterruptedException e) {
			System.err.println("程式讀取失敗！");
		}
	}
}
 

public class ThreadGUI extends JFrame implements ActionListener {

	JPanel contentPane;
	static JTextField textField = new JTextField();;
	static JProgressBar progressBar = new JProgressBar();
	static JTextArea textArea = new JTextArea();
	JButton bt1 = new JButton("\u5F00\u59CB");
	JButton bt2 = new JButton("\u505C\u6B62");
	CaThread c = new CaThread();
	ReadThread r = new ReadThread(c);

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

	/**
	 * Create the frame.
	 */
	public ThreadGUI() {
		setTitle("\u591A\u7EBF\u7A0B\u5C0F\u7A0B\u5E8F");
		setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
		setBounds(100, 100, 418, 185);
		contentPane = new JPanel();
		contentPane.setBorder(new EmptyBorder(5, 5, 5, 5));
		setContentPane(contentPane);
		contentPane.setLayout(null);

		bt1.setFont(new Font("宋體", Font.PLAIN, 14));
		bt1.setBounds(309, 64, 63, 34);
		contentPane.add(bt1);

		bt2.setFont(new Font("宋體", Font.PLAIN, 14));
		bt2.setBounds(309, 108, 63, 34);
		contentPane.add(bt2);

		JLabel lblNewLabel = new JLabel("\u8BA1\u7B97\u8FC7\u7A0B\uFF1A");
		lblNewLabel.setFont(new Font("宋體", Font.PLAIN, 14));
		lblNewLabel.setBounds(21, 17, 85, 24);
		contentPane.add(lblNewLabel);

		JLabel label = new JLabel("\u8FD0\u884C\u7ED3\u679C\uFF1A");
		label.setFont(new Font("宋體", Font.PLAIN, 14));
		label.setBounds(21, 108, 85, 24);
		contentPane.add(label);

		JLabel label_1 = new JLabel("\u8FDB\u5EA6\u6761  \uFF1A");
		label_1.setFont(new Font("宋體", Font.PLAIN, 14));
		label_1.setBounds(21, 69, 85, 24);
		contentPane.add(label_1);

		JScrollPane scrollPane = new JScrollPane();
		scrollPane.setBounds(116, 44, 282, -15);
		contentPane.add(scrollPane);

		JPanel panel = new JPanel();
		panel.setBounds(99, 14, 294, 34);
		contentPane.add(panel);
		panel.setLayout(new BorderLayout(0, 0));

		JScrollPane scrollPane_1 = new JScrollPane();
		panel.add(scrollPane_1, BorderLayout.CENTER);
		textArea.setFont(new Font("Monospaced", Font.PLAIN, 14));

		scrollPane_1.setViewportView(textArea);
		progressBar.setMaximum(30);

		progressBar.setForeground(Color.ORANGE);
		progressBar.setBounds(99, 69, 181, 24);
		contentPane.add(progressBar);

		textField.setBounds(99, 107, 181, 27);
		contentPane.add(textField);
		textField.setColumns(10);
		bt1.addActionListener(this);
		bt2.addActionListener(this);
	}

	@Override
	public void actionPerformed(ActionEvent e) {
		if (e.getSource() == bt1) {	
			bt1.setEnabled(false);
			bt2.setEnabled(true);
			r.start();
		}
		if (e.getSource() == bt2) {
			bt1.setEnabled(true);
			bt2.setEnabled(false);
			r.stop();
		}
	}
}