Mega Code Archive

 

Categories / Java Tutorial / File

 

Create a read-write memory-mapped file

import java.io.File; import java.io.RandomAccessFile; import java.nio.ByteBuffer; import java.nio.channels.FileChannel; public class Main {   public static void main(String[] argv) throws Exception {     FileChannel rwChannel = new RandomAccessFile(new File("test.txt"), "rw").getChannel();     ByteBuffer wrBuf = rwChannel.map(FileChannel.MapMode.READ_WRITE, 0, (int) rwChannel.size());   } }