Client Class

import java.io.BufferedReader;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.ObjectInputStream;
import java.io.ObjectOutputStream;
import java.net.Socket;
import java.net.URL;
import java.net.URLDecoder;

import javax.swing.JOptionPane;


public class Client {

    static String id = "StackUserThanks"; //The client's ID - New one will be generated later
    private static String savedDataFileName = "testone"; //The file name for the output file which holds the selection data from the user
    private static String savedDataFileNameMouse = "testtwo"; //The file name for the output file which holds the mouse data from the user
    private static String ext = ".txt"; //The extension of the saved file

    //Server Variables//
    static Socket socket = null; //The connection to the server
    private static String defaultHost = "localhost"; //The host that will appear by default
    private static int defaultPort = 7341; //The port that will appear by default
    static ObjectInputStream ois = null; //Data being received from server
    static ObjectOutputStream oos = null; //Data being sent TO server
    Object[] fromServer; //Holds data from server. A 2-dim array. [0] a String tag, to identify what it is. [1] the data to process
    //End Server Variables

    public static void main(String[] args){
        try{
            socket = new Socket(getAddress(), getPort());
        }
        catch(Exception e){
            JOptionPane.showMessageDialog(null,
                    "Could not connect to server. Call Administrator.",
                    "Error",
                    JOptionPane.ERROR_MESSAGE);
            e.printStackTrace();
        }

        //Data being received from Server
        try {
            ois = new ObjectInputStream(socket.getInputStream());
        } catch (IOException e) {
            e.printStackTrace();
        }

        //Data being sent TO server
        try {
            oos = new ObjectOutputStream(socket.getOutputStream());
        } catch (IOException e) {
            e.printStackTrace();
        }

        String[] idData = new String[2]; //Setup to send ID
        idData[0] = "ID"; //The tag for the ServerMultiClient to read
        idData[1] = id; //The information (the ID of the client)
        sendData(idData); //Send data to the server

        sendSavedData();
    }

    private static void sendSavedData(){
        try {
            System.out.println("CLIENT SEND SAVED DATA: " + getProgramPath() + savedDataFileName + ext);
        } catch (IOException e1) {
            e1.printStackTrace();
        }
        //Now send selection data to the server
        Object[] selectionData = new Object[2];
        selectionData[0] = "Selections";
        //selectionData[1] = allGraphs;
        BufferedReader br = null;
        try {
            br = new BufferedReader(new FileReader(getProgramPath() + savedDataFileName + ext));
            String line = br.readLine();
            while (line != null) {
                line = br.readLine();
                selectionData[1] = line;
                System.out.println("Client Line: " + line);
                sendData(selectionData);

            }
        }
        catch(Exception e){
            e.printStackTrace();
        }
        finally {
            try {
                br.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }


        //Now send selection mouse coor data to the server
        selectionData = new Object[2];
        selectionData[0] = "MouseCoor";
        selectionData[1] = "Test here 1";
        br = null;
        try {
            br = new BufferedReader(new FileReader(getProgramPath() + savedDataFileNameMouse + ext));
            String line = br.readLine();
            while (line != null) {
                line = br.readLine();
                selectionData[1] = line;
                System.out.println("Client Line2: " + selectionData[1]);
                sendData(selectionData);

            }
        }
        catch(Exception e){
            e.printStackTrace();
        }
        finally {
            try {
                br.close();
            } catch (IOException e) {
                e.printStackTrace();
            }
        }
    }

    //This method finds and returns the main program path of the main jar file.
    private static String getProgramPath() throws IOException{
        URL url = Client.class.getProtectionDomain().getCodeSource().getLocation(); //Gets the path
        String jarPath = URLDecoder.decode(url.getFile(), "UTF-8"); //Should fix it to be read correctly by the system
        String parentPath = new File(jarPath).getParentFile().getPath(); //Path of the jar
        return parentPath + File.separator;
    }

    //Gets the address from the Server text box
    private static String getAddress(){
        return defaultHost;
    }

    //Gets the port from the Port Box
    private static int getPort(){
        return defaultPort;
    }

    //Send data to the server
    private static void sendData(Object[] data){
        try {
            oos.writeObject(data);
        } catch (IOException e) {
            e.printStackTrace();
        }
    }

}