import java.io.*;

public class BufferedReaderDemo
{
	public static void main(String[] args)
	{   
		try(FileReader fis = new FileReader("BufferedReaderDemo.java");
		    BufferedReader bis = new BufferedReader(fis);
		   )
		{  int c;
		   while((c=bis.read()) != -1)
		   { System.out.print((char)c);
		   }
		}
		catch(IOException ie){ ie.printStackTrace();}
	}
}

import java.io.*;

public class BufferedWriterDemo
{
	public static void main(String[] args)
	{   
		try(FileReader fr = new FileReader("BufferedWriterDemo.java");
		    BufferedReader br = new BufferedReader(fr);
			FileWriter fw = new FileWriter("target.txt");
			BufferedWriter bw = new BufferedWriter(fw);
		   )
		{  int c;
		   while((c=br.read()) != -1)
		   { bw.write((char)c);
		   }
		   
		}
		catch(IOException ie)
		{ ie.printStackTrace();}
	}
}