Read & Write Notepad

Hi All,

Below is the code for :

1. Reading data from Notepad..
2.If Notepad exist then append data in it after reading data from other notepad else create new notepad and write data in it.

import java.io.*;

public class notepad

{

 public static void main(String args[])

  {

    notepad note=new notepad();

    note.readNotepad();

   }

 public void readNotepad()

 {

     try{

          // Open the file that is the first

          // command line parameter

          FileInputStream fstream = new FileInputStream("D://new_name.txt");

          // Get the object of DataInputStream

          DataInputStream in = new DataInputStream(fstream);

          BufferedReader br = new BufferedReader(new InputStreamReader(in));

          String strLine;

          //Read File Line By Line

          while ((strLine = br.readLine()) != null)

          {

              // Print the content on the console

              System.out.println (strLine);

               writeNotepad(strLine);

          }

          //Close the input stream

          in.close();

         }catch (Exception e){//Catch exception if any

    System.err.println("Error: " + e.getMessage());

    }

 }

public void writeNotepad(String data) throws IOException

{

File sampleFile = new File("D://old_name.txt");

if (sampleFile.exists())

    {

    FileWriter fw = new FileWriter(sampleFile, true);

    BufferedWriter bw = new BufferedWriter(fw);

    bw.newLine();

    bw.write(data+" ");

    bw.close();

    }

    else

    {

    sampleFile.createNewFile();

    FileWriter fw = new FileWriter(sampleFile);

    BufferedWriter bw = new BufferedWriter(fw);

    bw.write("new File's data "+data);

    bw.close();

    }

}

}