example of java socket programming

example
//clint program
    import java.net.*;
    import java.io.*;
    import java.util.*;
public class myclint
{
    public static void main(String args[])throws IOException
    {
        Socket cs= new Socket("localhost",1254);//open  connection
        Scanner ins=new Scanner(cs.getInputStream());
        PrintWriter outs=new PrintWriter(cs.getOutputStream(),true);//perform IO
        outs.println("hello Server");
        String s=ins.nextLine();
        System.out.println("from server::"+s);//close stream and connection
        ins.close();
        outs.close();
        cs.close();
    }
}
//server program
        import java.net.*;
        import java.io.*;
        import java.util.*;
public class myserver
{
    public static void main(String args[])throws IOException
        //Register server on port 1234
    {
        ServerSocket ss= new ServerSocket(1234);//wait and accept a connection
        Socket cs=ss.accept();//get a communication stream associated with the socket
        Scanner ins =new Scanner(cs.getInputStream());
        PrintWriter outs= new PrintWriter(cs.getOutputStream(),true);//perform
        String s=ins.nextLine();
        System.out.println("hello client:"+s);
        outs.println("hello clint");//close stream and connection
        outs.close();
        ins.close();
        cs.close();
        ss.close();
    }
}