Server code:

​

    package exp1;
    import java.net.*;
    import java.io.*;
    public class MyServerSocket{
        public static void main(String[] args) throws IOException {
            // TODO Auto-generated method stub
              ServerSocket ss=new ServerSocket(2050); 
              System.out.println("server is waiting..."); 
              Socket s=ss.accept(); 

              InetAddress ad= InetAddress.getByName("hostname");
              OutputStream os=s.getOutputStream(); 
              System.out.println("s"  ad.getHostAddress());
              byte ins=Byte.parseByte(ad.getHostAddress());
              os.write(ins); 

              ss.close();
        }


    }

​

Client code:

    package exp1;
    import java.io.*;
    import java.net.*;
    public class MyClientSocket {
        public static void main(String[] args) throws Exception{
        Socket s=new Socket(InetAddress.getLocalHost(),2050); 
        InputStream is=s.getInputStream(); 
        System.out.println("Client is ready to receive data"); 
        int d=0; 
        while(d!='#') 
        { 
        d=is.read(); 
        System.out.print((char)d); 
        }        
        }
    }

Error:

Server side:

​

Exception in thread "main" java.lang.NumberFormatException: For input string: "ip"

at java.base/java.lang.NumberFormatException.forInputString([NumberFormatException.java:67](https://NumberFormatException.java:67))

at java.base/java.lang.Integer.parseInt([Integer.java:660](https://Integer.java:660))

at java.base/java.lang.Byte.parseByte([Byte.java:193](https://Byte.java:193))

at java.base/java.lang.Byte.parseByte([Byte.java:219](https://Byte.java:219))

at exp1/exp1.MyServerSocket.main([MyServerSocket.java:14](https://MyServerSocket.java:14))

​