import java.io.*;
import java.nio.*;
import java.io.FileInputStream;
import java.nio.ByteBuffer;
import java.nio.channels.FileChannel;

public class ByteBufferLimit {
	public static void main(String[] args) throws IOException {
		FileInputStream InStream = new FileInputStream("test.txt");
		FileChannel fchannel = InStream.getChannel();
		ByteBuffer byteBuf = ByteBuffer.allocate(48);
		int bytesRead = fchannel.read(byteBuf);
		System.out.println("Limit of buffer at writing mode : "
				+ (byteBuf.limit()));
		byteBuf.flip();
		while (byteBuf.hasRemaining()) {
			System.out.print((char) byteBuf.get());
		}
		System.out.println("\n");
		System.out.println("Limit of buffer at reading mode : "
				+ (byteBuf.limit()));
	}
}