IOStreams

[sireesha]

Hi all,
please see below code...

Code:

import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
public class ChracterStreams
{
  public static void main(String[] args) throws IOException
  {
      FileReader in=null;
      FileWriter out=null;
      try
      {
          in=new FileReader("E:/Documents and Settings/Naresh/Desktop/java/abc.txt");
          out=new FileWriter("E:/Documents and Settings/Naresh/Desktop/java/xyz.txt"); 
          int c;
          while((c=in.read())!=-1)
              out.write(c);
      }
      finally
      {
          if(in!=null)
              in.close();
          if(out!=null)
              out.close();
      }
  }        

}

It successfully writes data from abc.txt to xyz.txt.
but it overwrites data in xyz.txt.
I just want to append new data in abc.txt to the data in xyz.txt.
now what i have to do ?
anyone please tell me....
Thankq very much.

[XiaoXiao]

FileWriter has an other constructor where you can specify whether to append or overwrite.
use

out=new FileWriter("E:/Documents and Settings/Naresh/Desktop/java/xyz.txt",true);
the boolean true will set that to append mode.

[sireesha]

thankq very much

[gibsonrocker800]

Ahh thanks for that information XiaoXiao. I never knew that. That will come in handy!!! =]

[Eranga]

Look at the documentation. Here is a link.