import java.awt.Dimension;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.Box;
import javax.swing.BoxLayout;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.JTextField;
import javax.swing.SwingUtilities;

public class JCount extends JPanel{

	/**
	 * Serial Version to remove warning
	 */
	private static final long serialVersionUID = 7861071299105432602L;
	private JTextField text;
	private JLabel number;
	private JButton start, stop;
	private Thread thread;

	/**
	 * Constructor initializes BoxLayout and adds textfield and buttons
	 */
	public JCount() {
		setLayout(new BoxLayout(this, BoxLayout.Y_AXIS));
		text = new JTextField();
		number = new JLabel("0");
		start = new JButton("Start");
		start.addActionListener(new startListener());
		stop = new JButton("Stop");
		stop.addActionListener(new stopListener());
		text.setText(1000000 + "");
		thread = new workerThread();
//		System.out.println(thread.isAlive());
		add(text);
		add(number);
		add(start);
		add(stop);
		setVisible(true);
	}

	/**
	 * Creates and shows visible gui with 4 JCounts
	 */
	private static void createAndShowGUI() {
		JFrame frame = new JFrame();
		frame.setLayout(new BoxLayout(frame.getContentPane(), BoxLayout.Y_AXIS));
		JCount[] count = new JCount[4];
		for (int i=0; i<4; i++) {
			count[i] = new JCount();
			frame.add(count[i]);
			frame.add(Box.createRigidArea(new Dimension(0, 40)));
		}
		frame.pack();
		frame.setVisible(true);
		frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
	}