Question
Create a MAIN PROGRAM IN JAVA that test the features of Client and ClientList classes according to program given below Client: import java.util.*; import java.lang.*;
Client:
import java.util.*;
import java.lang.*;
import java.io.*;
public class Client implements Serializable{
private static final long serialVersionUID = 1L;
public static final String CLIENT_STRING = "C";
private String Client_name;
private String Client_id;
private String Client_phone;
private String Client_address;
private Double Client_billing;
private List waitlistedProducts = new LinkedList();
public Client(String Name, String phone, String address, Double billing)
{
this.Client_name = Name;
this.Client_phone = phone;
this.Client_address = address;
this.Client_billing = billing;
Client_id = CLIENT_STRING + (ClientIDServer.instance()).getID();//generates id through the client id server
}
public String getName()
{
return Client_name;
}
public String getAddress()
{
return Client_address;
}
public String getPhone()
{
return Client_phone;
}
public Double getBilling()
{
return Client_billing;
}
public Double updateBalance(Double orderPrice)
{
this.Client_billing = Client_billing - orderPrice;
return Client_billing;
}
public String getID()
{
return Client_id;
}
public ClientOrder newOrder()
{
ClientOrder order = new ClientOrder();
return order;
}
public boolean addProductToWaitlist(Waitlist w){
return waitlistedProducts.add(w);
}
public boolean removeWaitlistedProduct(Waitlist w)
{
return waitlistedProducts.remove(w);
}
public Iterator getWaitlistedProducts()
{
return waitlistedProducts.iterator();
}
public Waitlist searchWaitListOnProduct(Product p)
{
Iterator iterator = waitlistedProducts.iterator();
Waitlist w;
while (iterator.hasNext())
{
w = iterator.next();
if (w.getProduct() == p)
{
return w;
}
}
return null;
}
public String toString()
{
return "Client: " + getName() + ". Phone: " + getPhone()+ ". ID: "+ getID()+". Address: "+getAddress() + " Balance: $" + getBilling();
}
}
ClientList:
import java.util.*;
import java.io.*;
public class ClientList implements Serializable{
private static final long serialVersionUID = 1L;
private List clients = new LinkedList();
private List Orders = new LinkedList();
private static ClientList clientList;
private ClientList(){
}
public static ClientList instance()
{
if (clientList == null)
{
return (clientList = new ClientList());
}
else
{
return clientList;
}
}
public boolean insertClient(Client Clients)
{
clients.add(Clients);
return true;
}
public Iterator getClients()
{
return clients.iterator();
}
public Client search(String clientID) {
for (Iterator iterator = clients.iterator(); iterator.hasNext(); ) {
Client client = (Client) iterator.next();
if (client.getID().equals(clientID)) {
return client;
}
}
return null;
}
private void writeObject(java.io.ObjectOutputStream output)
{
try{
output.defaultWriteObject();
output.writeObject(clientList);
}catch(IOException ioe){
ioe.printStackTrace();
}
}
private void readObject(java.io.ObjectInputStream input)
{
try{
if(clientList != null)
{
return;
}
else
{
input.defaultReadObject();
if(clientList == null)
{
clientList = (ClientList) input.readObject();
}
else
{
input.readObject();
}
}
}catch(IOException ioe){
ioe.printStackTrace();
}catch(ClassNotFoundException cnfe){
cnfe.printStackTrace();
}
}
public String toString()
{
return clients.toString();
}
}
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App Inventor
Authors: David Wolber, Hal Abelson
1st Edition
1449397484, 9781449397487
