Java tutorial
import java.io.*; public class Main { public static void main(String[] args) { try { RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw"); raf.writeBytes("Hello World from java2s.com"); raf.seek(0); System.out.println(raf.readLine()); raf.seek(0); raf.writeBytes("This is an example from java2s.com"); raf.seek(0); System.out.println(raf.readLine()); raf.close(); } catch (IOException ex) { ex.printStackTrace(); } } }