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Simple java class code that implements Serializable,ServerSocket, InputStream,ObjectInputStream, Socket

import java.net.*;
import java.io.*;

class ShopItem implements Serializable{
    int shopid;
    String name;
    float cost;
    public ShopItem(int id, String s, float c){
        this.shopid=id;
        this.name=s;
        this.cost=c;
    }
}



public class ObjectServer {
    public static void main(String args[]){
        int port=2002;

        try{
           ServerSocket ss=new ServerSocket(port);
           Socket s=ss.accept();
           InputStream is=s.getInputStream();
           ObjectInputStream ois=new ObjectInputStream(is);
           ShopItem to=(ShopItem)ois.readObject();
           if(to!=null){
               System.out.println("Object Details");
               System.out.println(to.shopid);
               System.out.println(to.name);
               System.out.println(to.cost);
           }

           is.close();
           s.close();
           ss.close();
        }
        catch(Exception e){
            System.out.println(e);
        }
    }

}

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