MappedChannelRead.java Source code

Introduction

Here is the source code for MappedChannelRead.java

Source

import java.io.FileInputStream;
import java.io.IOException;
import java.nio.MappedByteBuffer;
import java.nio.channels.FileChannel;

public class MappedChannelRead {
    public static void main(String args[]) {
        FileInputStream fIn;
        FileChannel fChan;
        long fSize;
        MappedByteBuffer mBuf;

        try {
            fIn = new FileInputStream("test.txt");
            fChan = fIn.getChannel();
            fSize = fChan.size();
            mBuf = fChan.map(FileChannel.MapMode.READ_ONLY, 0, fSize);
            for (int i = 0; i < fSize; i++)
                System.out.print((char) mBuf.get());

            fChan.close();
            fIn.close();
        } catch (IOException exc) {
            System.out.println(exc);
            System.exit(1);
        }
    }
}