Java tutorial
import java.io.IOException; import java.io.RandomAccessFile; import java.nio.IntBuffer; import java.nio.channels.FileChannel; public class MainClass { public static void main(String[] args) throws IOException { FileChannel fc = new RandomAccessFile("temp.tmp", "rw").getChannel(); IntBuffer ib = fc.map(FileChannel.MapMode.READ_WRITE, 0, fc.size()).asIntBuffer(); for (int i = 0; i < 10; i++) ib.put(i); fc.close(); } }