class First extends Thread
{
	public First()
	{
		start();
	}
	
	synchronized public void run()
	{
		try
		{
			wait();
		}
		catch(InterruptedException e)
		{
			e.printStackTrace();
		}
		try
		{
			sleep(2000);
		}
		catch(InterruptedException e)
		{
			e.printStackTrace();
		}
		System.out.println("hello world~");
	}
}

class Second extends Thread
{
	First first;
	public Second(First first)
	{
		this.first = first;
		start();
	}
	
	synchronized public void run()
	{
		try
		{
			wait();
		}
		catch (InterruptedException e1)
		{
			e1.printStackTrace();
		}
		synchronized( first )
		{
			try
			{
				sleep(2000);
				System.out.println("I'm faster than first~");
			}
			catch(InterruptedException e)
			{
				e.printStackTrace();
			}
			first.notifyAll();
		}
	}
}

public class Main
{
	public static void main(String[] args) throws InterruptedException
	{
		First first = new First();
		Second second = new Second(first);
		synchronized( second )
		{
			System.out.println("I'm faster than second~");
			second.notifyAll();
		}
	}
}

class First extends Thread
{
	public First()
	{
		start();
	}
	
	synchronized public void run()
	{
		try
		{
			wait();
		}
		catch(InterruptedException e)
		{
			e.printStackTrace();
		}
		try
		{
			sleep(2000);
		}
		catch(InterruptedException e)
		{
			e.printStackTrace();
		}
		System.out.println("hello world~");
	}
}

class Second extends Thread
{
	First first;
	public Second(First first)
	{
		this.first = first;
		start();
	}
	
	synchronized public void run()
	{
		try
		{
			wait();
		}
		catch (InterruptedException e1)
		{
			e1.printStackTrace();
		}
		synchronized( first )
		{
			try
			{
				sleep(2000);
				System.out.println("I'm faster than first~");
			}
			catch(InterruptedException e)
			{
				e.printStackTrace();
			}
			first.notifyAll();
		}
	}
}

public class Main
{
	public static void main(String[] args) throws InterruptedException
	{
		First first = new First();
		Second second = new Second(first);
		System.out.println("wating for all threads prepared~");
		Thread.sleep(2000);
		synchronized( second )
		{
			System.out.println("I'm faster than second~");
			second.notifyAll();
		}
	}
}

import java.io.File;
import java.io.FileWriter;
import java.io.IOException;

public class test_for_team_study_2
{
	public static void traverse(String name, FileWriter wt) throws IOException
	{
		wt.write(name + "\r\n");
		File path = new File(name);
		String[] list = path.list();
		if( null == list )
			return ;
		for(int i = 0; i < list.length; i ++)
			if( -1 == list[i].indexOf(".") )
				traverse(name + "/" + list[i], wt);
	}
	
	public static void main(String[] args) throws IOException
	{
		FileWriter wt = new FileWriter("C:/Users/Administrator/Desktop/file in D.out");
		String name = "D:/";
		File path = new File(name);
		String[] list = path.list();
		for(int i = 0; i < list.length; i ++)
		{
			wt.write("now is the file#:" + i + "\r\n==========================\r\n");
			traverse(name + "/" + list[i], wt);
			wt.write("\r\n\r\n\r\n");
		}
		wt.flush();
		wt.close();
		System.out.println("finished!");
	}
}

DefaultTableModel myModel = new DefaultTableModel(dataOfOrder, headOfOrder)	//实例化表格模式
{
    /**
     * 
     */
    private static final long serialVersionUID = 1L;

    public boolean isCellEditable(int rowIndex, int columnIndex) 	//重写方法改编可编辑性
    {
        if( columnIndex == getColumnCount() - 1 )
            return true;
        return false;
    }
};

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridLayout;
import java.awt.Toolkit;

import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JPanel;

public class test_for_blog  extends JFrame
{
	/**
	 * 
	 */
	private static final long serialVersionUID = 5136083409273453255L;
	
	private static int JFwidth = 450;
	private static int JFheight = 350;
	
	JPanel panel = null;
	
	JButton btnAdd = null;
	JButton btnDelete = null;
	
	public test_for_blog()
	{
		super("按钮添加测试");
		
		panel = new JPanel();
		
		btnAdd = new JButton("Add");
		btnDelete = new JButton("Delete");
		
		panel.setLayout( new GridLayout(1, 2) );
		panel.add(btnAdd);
		panel.add(btnDelete);
		this.getContentPane().add(panel, BorderLayout.SOUTH);
	}
	
	public static void main(String[] args)
	{
		test_for_blog test = new test_for_blog();
		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();	//获取显示屏尺寸
		test.setBounds((screenSize.width - JFwidth) / 2, (screenSize.height - JFheight) / 2, JFwidth, JFheight);	//使程序窗口居中
		test.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);	//窗口设为可关闭
		test.setResizable(false);	//窗口设为不可调节大小
		test.setVisible(true);	//窗口设为可见
	}
}