import java.nio.channels.SocketChannel;

import java.nio.ByteBuffer;

import java.net.InetSocketAddress;

import java.io.IOException;

public class SocketChannelDemo{

public static void main(String[] args){

SocketChannel sc = null;

try{

sc = SocketChannel.open();

sc.configureBlocking(false);

sc.connect(new InetSocketAddress("localhost", 9999));

while(!sc.finishConnect()){

System.out.println("waiting to finish connection");

}

// connection completed

ByteBuffer buffer = ByteBuffer.allocate(200);

while(sc.read(buffer) >= 0){

buffer.flip();

while(buffer.hasRemaining()){

System.out.print((char)buffer.get());

}

buffer.clear(); // prepare for next reading operation

}

}catch(IOException ioe){

ioe.printStackTrace();

}finally{

if(sc!=null){

try{

sc.close();

}catch(IOException ioe){

ioe.printStackTrace();

}

}

}

}

}