Sending a value associated with a checkbox across a client/server connectio

Question

Hello everyone,
I've been working on a coursework for uni which simulates a very simple pizza ordering system. I've built the GUI and got the prices to calculate in a single applet. I'm now required to advance my application to perform a client/server connection, and to to my limited knowledge of java, have stumped myself! Please can someone help. I need to take the value of the 5 chech boxes in the client GUI and pass them to the server, which needs to calculate the total and pass it back to the client to show in a text box. My code thus far is:
//client
import java.applet.Applet;
import java.awt.event.*;
import java.awt.*;
import java.io.*;
import java.net.*;
public class A3ClientClass_1 extends A4 {
     CheckboxGroup z;
     Checkbox tpizza, mpizza, ppizza, prpizza;
     Checkbox tomato, pepper, cheese, pepperoni, mushroom;
     String a = "";
     String b = "";
     TextField size, toppings, cost;
     double c;
Scrollbar xAxis, yAxis;
ScrollablePanel p;
public void init() {
          setBackground(Color.orange);
setLayout(new BorderLayout());
          Panel north = new Panel();
          north.add(new Label("SELECT THE PIZZA YOU WANT"));
          add(north, BorderLayout.NORTH);
          Panel outside = new Panel();
          outside.setBackground(Color.orange);
          z = new CheckboxGroup();
          tpizza = new Checkbox("Tomato Pizza", z, false);
          outside.add(tpizza);
          tpizza.addItemListener(this);
          mpizza = new Checkbox("Mushroom Pizza", z, false);
          outside.add(mpizza);
          mpizza.addItemListener(this);
          ppizza = new Checkbox("Pepper Pizza", z, false);
          outside.add(ppizza);
          ppizza.addItemListener(this);
          prpizza = new Checkbox("Pepperoni Pizza", z, false);
          outside.add(prpizza);
          prpizza.addItemListener(this);
          tomato = new Checkbox(" Tomatoes ");
          outside.add(tomato);
          tomato.addItemListener(this);
          pepper = new Checkbox(" Peppers ");
          outside.add(pepper);
          pepper.addItemListener(this);
          cheese = new Checkbox(" Cheese ");
          outside.add(cheese);
          cheese.addItemListener(this);
          pepperoni = new Checkbox(" Pepperoni ");
          outside.add(pepperoni);
          pepperoni.addItemListener(this);
          mushroom = new Checkbox(" Mushrooms");
          outside.add(mushroom);
          mushroom.addItemListener(this);
          size = new TextField(40);
          toppings = new TextField(40);
          cost = new TextField(40);
          outside.add(size);
          outside.add(toppings);
          outside.add(cost);
          tomato.disable();
          cheese.disable();
          pepper.disable();
          pepperoni.disable();
          mushroom.disable();
p = new ScrollablePanel(outside);
xAxis = new Scrollbar(Scrollbar.HORIZONTAL, 0, 50, 0, 100);
yAxis = new Scrollbar(Scrollbar.VERTICAL, 0, 50, 0, 100);
add("Center", p);
add("East", yAxis);
add("South", xAxis);
public boolean handleEvent(Event e) {
if (e.target instanceof Scrollbar) {
p.transxy(xAxis.getValue(), yAxis.getValue());
return true;
return super.handleEvent(e);
     public void itemStateChanged(ItemEvent e) {
          b = "";
          c = 0;
          if (tpizza.getState() == true) {
               a = tpizza.getLabel();
               c = c + 3.00;
               tomato.setState(true);
               cheese.setState(true);
               pepper.setState(false);
               pepperoni.setState(false);
               mushroom.setState(false);
          else if (mpizza.getState() == true) {
               a = mpizza.getLabel();
               c = c + 3.50;
               tomato.setState(false);
               cheese.setState(false);
               pepper.setState(false);
               pepperoni.setState(false);
               mushroom.setState(true);
          else if (ppizza.getState() == true) {
               a = ppizza.getLabel();
               c = c + 4.00;
               tomato.setState(false);
               cheese.setState(true);
               pepper.setState(true);
               pepperoni.setState(false);
               mushroom.setState(false);
          else if (prpizza.getState() == true) {
               a = prpizza.getLabel();
               c = c + 5.00;
               tomato.setState(false);
               cheese.setState(true);
               pepper.setState(false);
               pepperoni.setState(true);
               mushroom.setState(false);
          if (tomato.getState() == true) {
               b = b + tomato.getLabel() + " ";
               c = c + 0.25;
          if (pepper.getState() == true) {
               b = b + pepper.getLabel() + " ";
               c = c + 0.5;
          if (cheese.getState() == true) {
               b = b + cheese.getLabel() + " ";
               c = c + 0.5;
          if (pepperoni.getState() == true) {
               b = b + pepperoni.getLabel() + " ";
               c = c + 1.0;
          if (mushroom.getState() == true) {
               b = b + mushroom.getLabel() + " ";
               c = c + 0.5;
          size.setText("Pizza Type: " + a);
          toppings.setText("Toppings: " + b);
          cost.setText("Total: �" + c);
     try{
               Socket cts = new Socket(InetAddress.getLocalHost(), 6000);
               DataInputStream isfs = new DataInputStream(cts.getInputStream());
               DataOutputStream osts = new DataOutputStream(cts.getOutputStream());
               while(true) {
                    //code here
          catch (IOException e) {
                    System.out.println(e);
class ScrollablePanel extends Panel {
int transx = 0;
int transy = 0;
Panel outside;
public ScrollablePanel(Panel p) {
     setLayout(new BorderLayout());
     outside = p;
     add(outside);
public void transxy(int x, int y) {
transx = -x;
transy = -y;
     outside.move(transx, transy);
//Server
import java.io.*;
import java.net.*;
public class A3ServerClass_1 {
     public static void main(String[] args) {
          try
               ServerSocket ss = new ServerSocket(6000);
               Socket ssconnect = ss.accept();
               DataInputStream isfc = new DataInputStream(ctc.getInputStream());
               DataOutputStream ostc = new DataOutputStream(ctc.getOutputStream());
               while(true) {
//code here
          catch (IOException e) {
               System.out.println(e);
Thanks

Answer 1

Can't help ya there, I've never done socket programming. However, it comes up on these forums all the time. Try searching for some keywords about your problem.