FileChannel: map(MapMode mode, long position, long size) : FileChannel « java.nio.channels « Java by API

1. Java by API
2. java.nio.channels
3. FileChannel

FileChannel: map(MapMode mode, long position, long size)

   

import java.io.File;
import java.io.IOException;
import java.io.RandomAccessFile;
import java.nio.IntBuffer;
import java.nio.channels.FileChannel;

public class Main {
  public static void main(String[] args) throws IOException {
    FileChannel fc = new RandomAccessFile(new File("temp.tmp"), "rw").getChannel();
    IntBuffer ib = fc.map(FileChannel.MapMode.READ_WRITE, 0, fc.size()).asIntBuffer();
    ib.put(0);
    for (int i = 1; i < 10; i++)
      ib.put(ib.get(i - 1));
    fc.close();

  }
}

   
    
    
  

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