How to append an existing file in Java?

[NinjaZxR]

Hi,

As I said earlier I am new with JAVA. I want a code to add text to an existing file in java.
I mean I want to append to a file through java program.
How to append an existing file in Java?

[azianai]

It is actually very simple all you ne4ed to do is just add append option.

new FileOutputStream(f, true /* append */);

I hope you got this.

[unknown212]

Append To File

You can use the class FileWriter and BufferedWriter to append the data to a file.

BufferedWriter

The BufferWriter class is used to write text to a character-output stream, buffering characters so as to provide for the efficient writing of single characters, arrays, and strings.

Try This:

import java.io.*;
class FileWrite 
{
   public static void main(String args[])
  {
      try{
    // Create file 
    FileWriter fstream = new FileWriter("out.txt",true);
        BufferedWriter out = new BufferedWriter(fstream);
    out.write("Hello Java");
    //Close the output stream
    out.close();
    }catch (Exception e){//Catch exception if any
      System.err.println("Error: " + e.getMessage());
    }
  }
}

[gazwsx]

java append text to file

try {
BufferedWriter out = new BufferedWriter(new FileWriter("filename", true));
out.write("aString");
out.close();
} catch (IOException e) {}