import java.nio.ByteBuffer;
import java.nio.channels.SocketChannel;
public class Main {
public static void main(String[] argv) throws Exception {
ByteBuffer buf = ByteBuffer.allocateDirect(1024);
SocketChannel sChannel = SocketChannel.open();
sChannel.configureBlocking(false);
sChannel.connect(new InetSocketAddress("hostName", 12345));
int numBytesRead = sChannel.read(buf);
if (numBytesRead == -1) {
sChannel.close();
} else {
buf.flip();
}
}
}