How to append data to a text file in java?

Hello to all,
I am new to this forum. I am last year Computer science student. As part of my syllabus I am working on project where I use java as front end. In that project I have to append data to a text file. I tried various method, but none of them worked out. Can anyone tell me how to append data to a text file in java?
Thanks in advanced.

Hey it is very easy process to append data to a text file in java. You have to just use java.io and FileWriter class to do this. FileWriter class provides constructor that is used to accept a boolean parameter call append. In the following program you have to set boolean value true to append data to a text file.

Code:

---

package sample.code.java.io;

import java.io.*;

public class AppendFileEg
{
    public static void main(String[] args)
    {
        File files = new File("sample.txt");

        try
        {           
            FileWriter writers = new FileWriter(files, true);
            writer.write("usernames=omen;password=12345"
                    + System.getProperty("line.separator"));
            writers.flush();
            writers.close();
        } catch (IOException es)
        {
            es.printStackTrace();
        }
    }
}

---

You have to use BufferedWriter class and FileWriter class to append data to a text file. To do this you have to first invoke FileWriter constructor in proper way. I have written small java program to append data to a text file. In following program I have create one class known as appendfileEg class.

Code:

---


import java.io.*;

public class appendfileEg {

  public static void main (String[] args) {

      JavaFileAppendFileWriterExample as = new JavaFileAppendFileWriterExample();
      as.appendToCheckbook();

  }

  public void appendToCheckbooks () {

      BufferedWriter bws = null;

      try {
        bws = new BufferedWriter(new FileWriter("sample1.dat", true));
        bws.write("406:036987998:Inprise Corporation:236.95");
        bws.newLine();
        bws.flush();
      } catch (IOException ioes) {
        ioes.printStackTrace();
      } finally {                     
        if (bws != null) try {
            bws.close();
        } catch (IOException ioe2s) {
           
        }
      }

  }

}

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It is very simple to append data to a text file in java. It is very small program to understand. In the following program I have use two class known as FileWriter and BufferedWriter to append the data to a file. The FileWriter class is usually used for writing character files and the BufferWriter class is commonly used to write text to a character-output stream like string.

Code:

---

import java.io.*;
class FileWrite
{
  public static void main(String args[])
  {
      try{
   
    FileWriter fstreams = new FileWriter("sampl1.txt",true);
        BufferedWriter outs = new BufferedWriter(fstream);
    out.write("Hello to this world");
 
    outs.close();
    }catch (Exception es){
      System.err.println("Errors: " + es.getMessage());
    }
  }
}

---

As per my knowledge it is very simple to append data to text file in java. You only have to used only two class FileWriter and BufferedWriter to append data to a text file. It is very simple program. Just use this code in your program to do this. In following program I have crated one object of BufferedWriter and save all data information in that object

Code:

---

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

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