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

public class ReadFileClientApp {

  	public static void main(String args[]) 
  	{
    	try {
      	InetAddress inet = InetAddress.getLocalHost() ;//gets the address of the host/server
      	try {
				Socket s = new Socket(inet, 2001);//creates socket on port 2011
				InputStream in = s.getInputStream();
				BufferedReader d = new BufferedReader(new InputStreamReader(in));
				OutputStream o = s.getOutputStream() ;
				PrintWriter p = new PrintWriter(o) ;///allows to read and write to server

				String line ;
				
					while ((line = d.readLine()) != null) 
					{
						System.out.println(line);//prints input from server
						while ((line = d.readLine()) != null) 
					{
      		  		System.out.println(line);//prints input from server
        			}
      		  		
        			
        			
        	ServerSocket server = new ServerSocket(2002) ;//attempt to make client also a server
        	while (true) {
	    Socket client = server.accept() ;
      		  	
        		String answers;
        		BufferedReader inp= new BufferedReader(new InputStreamReader(System.in));
        		answers=inp.readLine();
        		System.out.println(answers);
        		p.println(answers);
        		p.flush() ;
        		line=d.readLine();
        		System.out.println(line);//sending answer to the questions in one long string to server
        		}
        		
        }	
      	}
      	catch (IOException e) 
      		{
				System.out.println("Failed connection to server") ;
      		}
    	}
    	catch (UnknownHostException e) {
      	System.out.println("Unknown Host ") ;
      	e.printStackTrace();
    	}
  	}
}

import java.net.* ;
import java.util.* ;
import java.io.* ;
import java.math.*;



class createFile ///this just creates the files to be used, skip this stuff
{
	public void createFilemain()throws IOException
	{
	File outputfile = new File("questions.txt");
	FileOutputStream fos = new FileOutputStream(outputfile);
	PrintWriter pw = new PrintWriter(new OutputStreamWriter(fos));
		
		pw.println("  ");
		pw.println("Q1.what is the capital of spain?");
		pw.println("a.paris");
		pw.println("b.berlin");
		pw.println("c.madrid");
		pw.println("Q2.who sang 'i shot the sheriff'?");
		pw.println("a.elvis");
		pw.println("b.bob marley");
		pw.println("c.bob dylan");
		pw.println("Q3.what language is most widely spoken?");
		pw.println("a.spanish");
		pw.println("b.english");
		pw.println("c.portugese");
		pw.println("Q4.who was charles stewart parnell's lover?");
		pw.println("a.margaret thatcher");
		pw.println("b.kitty o shea");
		pw.println("c.bridey mc manus");
		pw.println("Q5.where does chess come from?");
		pw.println("a.poland");
		pw.println("b.india");
		pw.println("c.china");
		pw.println("Q6.what does the letter 'c' in CIA stand for :");
		pw.println("a.criminal");
		pw.println("a.clinical");
		pw.println("a.convicts");
		pw.println("Q7.who won the 1966 world cup?");
		pw.println("a.england");
		pw.println("b.italy");
		pw.println("c.germany");
		pw.println("Q8.what language is spoken in brazil");
		pw.println("a.spanish");
		pw.println("b.portugese");
		pw.println("c.french");
		pw.println("Q9.who shot john f kennedy(supposidly)?");
		pw.println("a.lee harvey oswald");
		pw.println("b.elvis preistley");
		pw.println("c.john lennon");
		pw.println("Q10.In what year was sean lemass reinstated");
		pw.println("a.1962");
		pw.println("b.1964");
		pw.println("c.1966");

		pw.flush();
		pw.close();
		}
		
		public void createFile1()throws IOException
	{
	File outputfile = new File("finalq1.txt");
	FileOutputStream fos = new FileOutputStream(outputfile);
	PrintWriter pw = new PrintWriter(new OutputStreamWriter(fos));
	
		pw.println("  ");
		pw.println("You have answered correctly. the final question is ;");
		pw.println("Q.where does the pope come from");
		pw.println("a.poland");
		pw.println("b.italy");
		pw.println("c.bulgaria");
		pw.flush();
		pw.close();
	}
	
	
	public void createFile2()throws IOException
	{
	File outputfile = new File("finalq2.txt");
	FileOutputStream fos = new FileOutputStream(outputfile);
	PrintWriter pw = new PrintWriter(new OutputStreamWriter(fos));
	
		pw.println("  ");
		pw.println("You have answered correctly. the final question is ;");
		pw.println("Q.what is the name of bob marleys band");
		pw.println("a.the wailers");
		pw.println("b.the cryers");
		pw.println("c.the screamers");
		pw.flush();
		pw.close();
	}
	
	public void createFile3()throws IOException
	{
	File outputfile = new File("finalq3.txt");
	FileOutputStream fos = new FileOutputStream(outputfile);
	PrintWriter pw = new PrintWriter(new OutputStreamWriter(fos));
	
		pw.println("  ");
		pw.println("You have answered correctly. the final question is ;");
		pw.println("Q.what is the name of bob marleys back up singers");
		pw.println("a.i-threes");
		pw.println("b.i-nines");
		pw.println("c.hi-fives");
		pw.flush();
		pw.close();
	}///end of files being created
}
public class ReadFileServerApp {

  public static void main(String args[]) {

    try {
      ServerSocket server = new ServerSocket(2001) ;
       int i=0;
      while (true) {
	    Socket client = server.accept() ;	//thread used per client socket
      	i++;
      		if(i%10==0)
      		{
      		calls c= new calls(client);
      		c.start();
      		}
      	
      }
    }
    catch (IOException e) {
      System.out.println("an exception occurred: " + e.getMessage());
      e.printStackTrace();
    }
  }
}

class calls extends Thread 
{
	Socket s;
	
	calls(Socket s)
	{
		this.s=s;
	}
	
	public void run()
	{
		try{
			
		
		OutputStream o = s.getOutputStream() ;
		PrintWriter p = new PrintWriter(o) ;
		
		p.println("You are the lucky caller");
      	createFile c= new createFile();
    	c.createFilemain();//creating the questions file
    	String file="questions.txt";
    	String ans;
    	int j=0;
    	
    	while(j<3)
    		{
		FileHandler h = new FileHandler(s, file) ;
		h.start() ;//call filehandler to pass files to client
		j++;//increment every time a file is passed
		
		try {
      	InetAddress inet = InetAddress.getLocalHost() ;
      	try {
				Socket sc = new Socket(inet, 2002);
				InputStream inc = sc.getInputStream();
		BufferedReader dc = new BufferedReader(new InputStreamReader(inc));
     	ans = dc.readLine();
     	
     	System.out.println(ans) ;
      	
		if(j==1)//for the first file
		{
		
			if (ans=="cbabbaabac")//if answer to first file is correct
			{
		
		int fnum;
		fnum= 1+((int)(Math.random()*3));
		
		switch (fnum)
		{
		case 1: file="finalq1.txt";
		createFile c1= new createFile();
    	c1.createFile1();
		break;
		case 2: file="finalq2.txt";
		createFile c2= new createFile();
    	c2.createFile2();
		break;
		case 3: file="finalq3.txt";
		createFile c3= new createFile();
		c3.createFile3();
		break;
		default: file="finalq1.txt";
		createFile c4= new createFile();
    	c4.createFile1();
    	break;
		}
			}
			else
			{
				p.println("Unlucky, try again");
				j=3;
			}
			}
			
		if(j==2)//the second time a file is called i.e the final q
		{
		if (ans=="a")
     	p.println("You have won $10,000, congratulations");
     	else
     	p.println("You have answered incorrectly. your prize is a tv");
     	j=3;
		}
		
		}
		catch (IOException e) 
      		{
				System.out.println("Failed connection to server") ;
      		}
		}
		catch (UnknownHostException e) {
      	System.out.println("Unknown Host ") ;
      	e.printStackTrace();
    		}
    	}
    	
		}
		catch (IOException e) {
      System.out.println("an exception occurred: " + e.getMessage());
      e.printStackTrace();
      }
		}
		}
		
		

class FileHandler extends Thread {
  Socket s ;
  String file;

  FileHandler(Socket s, String file) {
    this.s = s ;
    this.file=file;
  }

  public void run() {
    try {
      
      OutputStream o = s.getOutputStream() ;
      PrintWriter p = new PrintWriter(o) ;
		
      FileInputStream fin = new FileInputStream(file) ;
      BufferedReader f = new BufferedReader(new InputStreamReader(fin));
	
      String line ;
      while ((line = f.readLine()) != null) {
		p.println(line);
      }
      
      
    
    }
    catch (IOException e) {
      System.out.println("an exception occurred: " + e.getMessage());
      e.printStackTrace();
    }
  }
}