package servtest;
import java.io.*;
import java.net.*;

public class ServTest {
    public static void main(String argv[]) throws Exception{
        ServerSocket welcomeSocket = new ServerSocket(6789);
        String clientSentence;
        String capitalizedSentence;
        boolean printed=false;
        while(true) {
            Socket connectionSocket = welcomeSocket.accept();
            if(printed==false)
            {
                System.out.println("now listening");
                printed=true;
            }
            BufferedReader inFromClient = new BufferedReader(new InputStreamReader(connectionSocket.getInputStream()));
            DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream());
            clientSentence=inFromClient.readLine();
            capitalizedSentence=clientSentence.toUpperCase()+'\n';
            outToClient.writeBytes(capitalizedSentence);
        }

    }
}

package nettest;
import java.net.*;
import java.io.*;

public class NetTest {
    public static void main(String[] argv) throws Exception{
        String sentence;
        String modifiedSentence;
        BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in));
        Integer port1=Integer.parseInt(argv[1]);
        InetAddress add1 = InetAddress.getByName(argv[0]);
        Socket clientSocket = new Socket(add1,port1);
        //Socket clientSocket = new Socket("10.0.0.80",6789);
        DataOutputStream outToServer = new DataOutputStream(clientSocket.getOutputStream());
        BufferedReader inFromServer = new BufferedReader(new InputStreamReader(clientSocket.getInputStream()));

        sentence = inFromUser.readLine();
        outToServer.writeBytes(sentence + '\n');
        modifiedSentence = inFromServer.readLine();
        System.out.println("FROM SERVER: "+modifiedSentence);
        clientSocket.close();
    }

}

package Pak2;
import java.io.*;
import java.net.*;
public class FraleyP1MidServer {

    public static void main(String argv[]) throws Exception{
        ServerSocket welcomeSocket = new ServerSocket(6789);
        String usertry;
        String username;
        while(true) {
            Socket connectionSocket = welcomeSocket.accept();
            username = "hunter";

            BufferedReader inFromClient = new BufferedReader(new
                InputStreamReader(connectionSocket.getInputStream()));
                DataOutputStream outToClient = new DataOutputStream(connectionSocket.getOutputStream());

                usertry=inFromClient.readLine();
                if(username.equals(username))
                    outToClient.writeBytes("+ve");
                else
                    outToClient.writeBytes("-ve");
                connectionSocket.close();
        }
    }

}


package FraP1;
import java.net.*;
import java.io.*;
import java.lang.Thread.*;


public class FraleyP1Sender{
    public static void main(String argv[]) throws Exception{

        //Scanner s = new Scanner(System.in);
        System.out.print("username: ");
        //System.out.print("password: ");
        //String password = s.nextLine();
        BufferedReader inFromUser = new BufferedReader(new InputStreamReader(System.in)); //start up a bufferedreader to take input from user
        //System.out.println(username);
        Integer port1=Integer.parseInt(argv[1]);
        InetAddress add1 = InetAddress.getByName(argv[0]);
        Socket clientSocket = new Socket(add1,port1);  // connection happens here
        String username = inFromUser.readLine();
        DataOutputStream outToServer = new DataOutputStream(clientSocket.getOutputStream()); //start up an output stream to send to the server
        BufferedReader inFromServer = new BufferedReader(new InputStreamReader(clientSocket.getInputStream())); //start up a bufferedreader to take input from the server
        outToServer.writeBytes(username);
        String userve;
        userve = inFromServer.readLine();
        System.out.println("FROM SERVER: "+userve);
        clientSocket.close();
    }
}