Day: June 12, 2022

Jaluh is making a room inventory in the Hostel where she is working. They have 16 rooms
labelled as A-P. She is doing this manually that it will consume more time. Make a program
that will automatically be identified if the room is taken or not. An array code.. ANYONE COULD HELP ME THIS GUYS.

I don't get what's the problem with this Dictionary created using Arraylist and Socket . I get SocketException error I don't know why also I tried to created a method to read....

ClientCode:

import java.io.BufferedReader;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.Scanner;
import java.net.SocketException;

public class Client {

    public static void main(String[] args) {
        int N;
        Scanner sc=new Scanner(System.in);
        Socket cs=null;
        BufferedReader bfr=null;
        PrintWriter pw=null;
        try{
            cs=new Socket("localhost",5000)  ;
            InputStreamReader isr=
                    new InputStreamReader(cs.getInputStream());
            bfr=new BufferedReader(isr);
            pw=new PrintWriter(cs.getOutputStream());
            System.out.println("S-a setat reteaua!");
            for(;;){

                System.out.print("Cuvantul care trebuie tradus:");
                String cuvant=sc.nextLine();
                //daca este STOP : se va deconecta
                if(cuvant.equals("STOP")) {pw.println(""); pw.flush();break;}
                else  {pw.println(cuvant); pw.flush();}
                //Citim raspuns server:
                String textIn=bfr.readLine();
                if(textIn==null)break;
                System.out.println(textIn);
            }//for;;
        }catch( IOException e){
            e.printStackTrace();
        }
        System.out.println("Clientul s-a deconectat!");
    }//main
}

ClientHandler code:

import java.io.BufferedReader;
import java.io.FileReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;
import java.util.ArrayList;
import java.net.SocketException;


//Clasa firului de execuie pentru tratarea clientului conectat la server:
class FirClient extends Thread {
    private Socket cs;
    private BufferedReader bfr;
    private PrintWriter pw;
    ArrayList<String> listacuvinte;//la creare firului incarcam datele

    // din fisier intr-un ArrayList
    public FirClient(Socket cs) {
        try {
            this.cs = cs;
            pw = new PrintWriter(cs.getOutputStream());
            InputStreamReader isr =
                    new InputStreamReader(cs.getInputStream());
            bfr = new BufferedReader(isr);
            //incarcam fisierul cuvinte .txt in ArrayList:
            listacuvinte = new ArrayList<String>();
            System.out.println("Se copiaza fisier in al");
            FileReader f = new FileReader("date.txt");
            BufferedReader bf = new BufferedReader(f);
            for (; ; ) {
                String s = bf.readLine();
                if (s == null) break;//s-a terminat fisier
                listacuvinte.add(s);
            }
            bf.close();
            f.close();
        } catch (Exception e) {
            e.printStackTrace();
            System.exit(1);
        }
    }

    public void run()
    {
        try{
            for(;;){
                String cuvant = bfr.readLine();
                if(cuvant == null)break;
                if(cuvant.equals(""))break;
                //cautare cuvant in ArrayList:
                boolean gasit=false;
                for(int i=0;i<listacuvinte.size();i+=2){
                    if(listacuvinte.get(i).equals(cuvant)){
                        String crt= listacuvinte.get(i+1);
                        gasit=true;
                        break;
                    }

                }

            }//for;;
        }catch(final Exception e){e.printStackTrace();}
    }//run
}

ServerCode:

import java.net.ServerSocket;
import java.net.Socket;
import java.net.SocketException;


public class Server {

    public static void main(String[] args) {
        System.out.println("Am pornit server...");
           try{
            ServerSocket ss=new ServerSocket(5000);
            for(;;){
             Socket cs=ss.accept();
             FirClient firPtClient=new FirClient(cs);
             firPtClient.start();
             System.out.println("Avem o conectare!");
            }//for;;
           }catch(Exception e){
               e.printStackTrace();
           }


    }

}