Java. How to append text to top of file.txt [duplicate]

Answer 1

The below code worked for me. Again it will obviously replace the bytes at the beginning of the file. If you can certain how many bytes of replacement will be done in advance then you can use this. Otherwise, follow the earlier answers or take a look at here Writing in the beginning of a text file Java

    String str = "Jennifer";  
    byte data[] = str.getBytes();       

    try {                           
            RandomAccessFile f = new RandomAccessFile(new File("src/lt/test.txt"), "rw");
            f.getChannel().position(0);         
            f.write(data);
            f.close();
    } catch (IOException e) {       
            e.printStackTrace();
    }