import javax.swing.*;
import java.awt.*;
public class Head extends JFrame{

	private JTextArea textArea = new JTextArea();

	public Head(String title){
		super(title);
		JScrollPane scrollPane = new JScrollPane(textArea);
		scrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
		getContentPane().add(scrollPane, BorderLayout.CENTER);
		setDefaultCloseOperation(EXIT_ON_CLOSE);
		setSize(500, 400);
		show();
		doIt();
	}

	public void doIt(){
		Thread current = Thread.currentThread();
		int counter = 0;
		ThreadOne one = null;
		RunnableTwo two = null;
		boolean alive = true;
		while(alive){
			try { current.sleep(1000); } catch(InterruptedException ie) {
			}
			switch (counter){
				case 0:{
					textArea.append("\nCreating and starting thread 1\n\n");
					textArea.setCaretPosition(textArea.getText().length());
					one = new ThreadOne(textArea);
				}break;
				case 5:{
					textArea.append("\nCreating and starting thread 2\n\n");
					textArea.setCaretPosition(textArea.getText().length());
					two = new RunnableTwo(textArea);
				}break;
				case 10:{
					two.pause();
					textArea.append("\nPausing thread 2\n\n");
					textArea.setCaretPosition(textArea.getText().length());
				}break;
				case 15:{
					textArea.append("\nRestarting thread 2\n\n");
					textArea.setCaretPosition(textArea.getText().length());
					two.restart();
				}break;
				case 20:{
					one.kill();
					textArea.append("\nKilling thread 1\n\n");
					textArea.setCaretPosition(textArea.getText().length());
				}break;
				case 25:{
					two.kill();
					textArea.append("\nKilling thread 2\n\n");
					textArea.setCaretPosition(textArea.getText().length());
					alive = false;
				}
			}
			counter++;
 		} 
	}
		
	public static void main(String[] args){
		new Head("ThreadTester");
	}
}