this is tic tac toe game within telnet. The game is not allowing user input, it

Question

this is tic tac toe game within telnet. The game is not allowing user input, it asks for your move and when Move 5 is typed in, nothing occurs.

Client

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

/**
*
* @author idagr
*/
public class client {
static final int PORT = 8080;
private Socket socket;
private BufferedReader in;
private PrintWriter out;
String serverAddress = "host";

public client(String serverAddress) throws Exception {
socket = new Socket(serverAddress, PORT);
in = new BufferedReader(new InputStreamReader(
socket.getInputStream()));
out = new PrintWriter(socket.getOutputStream(), true);
}
  
public void play() throws Exception {
String response;
try {
response = in.readLine();
if (response.startsWith("WELCOME")) {
char mark = response.charAt(8);
  
}
while (true) {
response = in.readLine();
if (response.startsWith("VALID_MOVE")) {
System.out.println("Valid move, please wait");
  
} else if (response.startsWith("OPPONENT_MOVED")) {

System.out.println("Opponent moved, your turn");
} else if (response.startsWith("VICTORY")) {
System.out.println("You win");
break;
} else if (response.startsWith("DEFEAT")) {
System.out.println("You lose");
break;
} else if (response.startsWith("TIE")) {
System.out.println("You tied");
break;
} else if (response.startsWith("MESSAGE")) {
System.out.println(response.substring(8));
}
}
out.println("QUIT");
}
finally {
socket.close();
}
}

/**
* Graphical square in the client window. Each square is
* a white panel containing. A client calls setIcon() to fill
* it with an Icon, presumably an X or O.
*/
  

/**
* Runs the client as an application.
*/
public static void main(String[] args) throws Exception {
while (true) {
String serverAddress = (args.length == 0) ? "localhost" : args[1];
client Client = new client(serverAddress);
Client.play();
  
}
}
}

TictoeServer

package tictoe;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;

public class TicToe {

/**
* @param args the command line arguments
*/
public static void main(String[] args) throws IOException {
int portNum = 8080;
ServerSocket listener = new ServerSocket (portNum);
System.out.println("Server is Running");
try{
while(true){
Socket connectionSocket = listener.accept();
System.out.println("Connection socket" + connectionSocket.toString());
if(connectionSocket.isConnected() == true)
{
// connectionSocket.close();
}
  
Game game = new Game();
Game.Player playerX = game.new Player (listener.accept(), 'X');
Game.Player playerO = game.new Player (listener.accept(), 'O');
playerX.setOpponent(playerO);
playerO.setOpponent(playerX);
game.currentPlayer = playerX;
playerX.start();
playerO.start();
connectionSocket.close();
}
} finally {
// listener.close();
// listener.close();
// }
try {
listener.close();
} catch (IOException ex) {
Logger.getLogger(TicToe.class.getName()).log(Level.SEVERE, null, ex);
}
}
// TODO code application logic here
}
  
}
class Game {
private Player[] board = {
null, null, null,
null, null, null,
null, null, null};
Player currentPlayer;

public boolean Winner() {
return
(board[0] != null && board[0] == board[1] && board[0] == board[2])
||(board[3] != null && board[3] == board[4] && board[3] == board[5])
||(board[6] != null && board[6] == board[7] && board[6] == board[8])
||(board[0] != null && board[0] == board[3] && board[0] == board[6])
||(board[1] != null && board[1] == board[4] && board[1] == board[7])
||(board[2] != null && board[2] == board[5] && board[2] == board[8])
||(board[0] != null && board[0] == board[4] && board[0] == board[8])
||(board[2] != null && board[2] == board[4] && board[2] == board[6]);
}
public boolean filled() {
for (int i = 0; i < board.length; i++) {
if (board[i] == null) {
return false;
}
}
return true;
}
public synchronized boolean legalMove(int location, Player player) {
if (player == currentPlayer && board[location] == null) {
board[location] = currentPlayer;
currentPlayer = currentPlayer.opponent;
currentPlayer.otherPlayerMoved(location);
return true;
}
return false;
}
class Player extends Thread {
char mark;
Player opponent;
Socket socket;
BufferedReader input;
PrintWriter output;
  
  
public Player(Socket socket, char mark) {
this.socket = socket;
this.mark = mark;
try {
input = new BufferedReader(
new InputStreamReader(socket.getInputStream()));
output = new PrintWriter(socket.getOutputStream(), true);
output.println("MESSAGE Waiting for opponent to connect" + " and mark = " + mark);
output.println("WELCOME " + mark);

  
} catch (IOException e) {
System.out.println("Player died: " + e);
}
}
public void setOpponent(Player opponent) {
this.opponent = opponent;
// mark='O';
// output.println("mark in setopponent = " + mark);
}
public void otherPlayerMoved(int location) {
output.println("OPPONENT_MOVED " + location);
output.println(
Winner() ? "DEFEAT" : filled() ? "TIE" : "");
}

public void run() {
try {
output.println("MESSAGE All players connected");
if (mark == 'X') {
output.println("MESSAGE Your move" + "mark = " + mark);
}

while (true){
String command = input.readLine();
if(command.startsWith("Move")){
int location = Integer.parseInt(command.substring(5));
if (legalMove(location,this)){
output.println("VALID MOVE");
output.println(Winner() ? "VICTORY"
:filled()? "TIE"
:"");
}else {
output.println("MESSAGE?");
}
} else if (command.startsWith("QUIT")){
return;
}
}
} catch (IOException e){
System.out.println("Player left:" + e);
} finally {
try{socket.close();} catch (IOException e){}
  
}
}

}
}

Explanation / Answer

import java.io.BufferedReader;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.Socket;

public class client {
static final int PORT = 8080;
private Socket socket;
private BufferedReader in;
private PrintWriter out;
String serverAddress = "host";

public client(String serverAddress) throws Exception {
socket = new Socket(serverAddress, PORT);
in = new BufferedReader(new InputStreamReader(
socket.getInputStream()));
out = new PrintWriter(socket.getOutputStream(), true);
}
  
public void play() throws Exception {
String response;
try {
response = in.readLine();
if (response.startsWith("WELCOME")) {
char mark = response.charAt(8);
  
}
while (true) {
response = in.readLine();
if (response.startsWith("VALID_MOVE")) {
System.out.println("Valid move, please wait");
  
} else if (response.startsWith("OPPONENT_MOVED")) {

System.out.println("Opponent moved, your turn");
} else if (response.startsWith("VICTORY")) {
System.out.println("You win");
break;
} else if (response.startsWith("DEFEAT")) {
System.out.println("You lose");
break;
} else if (response.startsWith("TIE")) {
System.out.println("You tied");
break;
} else if (response.startsWith("MESSAGE")) {
System.out.println(response.substring(8));
}
}
out.println("QUIT");
}
finally {
socket.close();
}
}

public static void main(String[] args) throws Exception {
while (true) {
String serverAddress = (args.length == 0) ? "localhost" : args[1];
client Client = new client(serverAddress);
Client.play();
  
}
}
}

TictoeServer

package tictoe;
import java.io.BufferedReader;
import java.io.DataOutputStream;
import java.io.IOException;
import java.io.InputStreamReader;
import java.io.PrintWriter;
import java.net.ServerSocket;
import java.net.Socket;
import java.util.logging.Level;
import java.util.logging.Logger;

public class TicToe {

public static void main(String[] args) throws IOException {
int portNum = 8080;
ServerSocket listener = new ServerSocket (portNum);
System.out.println("Server is Running");
try{
while(true){
Socket connectionSocket = listener.accept();
System.out.println("Connection socket" + connectionSocket.toString());
if(connectionSocket.isConnected() == true)
{
}
  
Game game = new Game();
Game.Player playerX = game.new Player (listener.accept(), 'X');
Game.Player playerO = game.new Player (listener.accept(), 'O');
playerX.setOpponent(playerO);
playerO.setOpponent(playerX);
game.currentPlayer = playerX;
playerX.start();
playerO.start();
connectionSocket.close();
}
} finally {
}
try {
listener.close();
} catch (IOException ex) {
Logger.getLogger(TicToe.class.getName()).log(Level.SEVERE, null, ex);
}
}

}
  
}
class Game {
private Player[] board = {
null, null, null,
null, null, null,
null, null, null};
Player currentPlayer;

public boolean Winner() {
return
(board[0] != null && board[0] == board[1] && board[0] == board[2])
||(board[3] != null && board[3] == board[4] && board[3] == board[5])
||(board[6] != null && board[6] == board[7] && board[6] == board[8])
||(board[0] != null && board[0] == board[3] && board[0] == board[6])
||(board[1] != null && board[1] == board[4] && board[1] == board[7])
||(board[2] != null && board[2] == board[5] && board[2] == board[8])
||(board[0] != null && board[0] == board[4] && board[0] == board[8])
||(board[2] != null && board[2] == board[4] && board[2] == board[6]);
}
public boolean filled() {
for (int i = 0; i < board.length; i++) {
if (board[i] == null) {
return false;
}
}
return true;
}
public synchronized boolean legalMove(int location, Player player) {
if (player == currentPlayer && board[location] == null) {
board[location] = currentPlayer;
currentPlayer = currentPlayer.opponent;
currentPlayer.otherPlayerMoved(location);
return true;
}
return false;
}
class Player extends Thread {
char mark;
Player opponent;
Socket socket;
BufferedReader input;
PrintWriter output;
  
  
public Player(Socket socket, char mark) {
this.socket = socket;
this.mark = mark;
try {
input = new BufferedReader(
new InputStreamReader(socket.getInputStream()));
output = new PrintWriter(socket.getOutputStream(), true);
output.println("MESSAGE Waiting for opponent to connect" + " and mark = " + mark);
output.println("WELCOME " + mark);

  
} catch (IOException e) {
System.out.println("Player died: " + e);
}
}
public void setOpponent(Player opponent) {
this.opponent = opponent;
}
public void otherPlayerMoved(int location) {
output.println("OPPONENT_MOVED " + location);
output.println(
Winner() ? "DEFEAT" : filled() ? "TIE" : "");
}

public void run() {
try {
output.println("MESSAGE All players connected");
if (mark == 'X') {
output.println("MESSAGE Your move" + "mark = " + mark);
}

while (true){
String command = input.readLine();
if(command.startsWith("Move")){
int location = Integer.parseInt(command.substring(5));
if (legalMove(location,this)){
output.println("VALID MOVE");
output.println(Winner() ? "VICTORY"
:filled()? "TIE"
:"");
}else {
output.println("MESSAGE?");
}
} else if (command.startsWith("QUIT")){
return;
}
}
} catch (IOException e){
System.out.println("Player left:" + e);
} finally {
try{socket.close();} catch (IOException e){}
  
}
}

}

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