Java tutorial
import java.io.*; public class Main { public static void main(String[] args) { try { boolean b = true; RandomAccessFile raf = new RandomAccessFile("c:/test.txt", "rw"); raf.writeBoolean(false); raf.seek(0); System.out.println(raf.readBoolean()); raf.writeBoolean(b); raf.seek(1); System.out.println(raf.readBoolean()); raf.close(); } catch (IOException ex) { ex.printStackTrace(); } } }