import java.io.FileInputStream;
import java.io.IOException;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;
public class ExplicitChannelRead {
public static void main(String args[]) {
FileInputStream fIn;
FileChannel fChan;
long fSize;
ByteBuffer mBuf;
try {
fIn = new FileInputStream("test.txt");
fChan = fIn.getChannel();
fSize = fChan.size();
mBuf = ByteBuffer.allocate((int) fSize);
fChan.read(mBuf);
mBuf.rewind();
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);
}
}
}