Details of Task:
Every UML diagram in the model solution is important as each one models some aspect of the eAuction system. However, the most important diagram is the Class diagram as it forms not only the starting point of your prototype’s implementation but also models the majority of the eAuction system’s structure.

Ensure that your prototype is able to execute the tasks that are isolated in the Use Case diagram. The specific steps involved in executing these tasks are described either in the requirements document or the model solution. Where steps are poorly described you must use common sense / assumptions to implement those steps.

The eAuction system will require a menu system that should be implemented in the System class. You are not required to store data (i.e. a Database or Comma Separated Value .csv file). You can as an alternative, hard code test data for Users, Auctions etc.

What you should hand in:
The working prototype in a ZIP file. Specifically, a single Eclipse (Oxygen) project directory complete with all Java (.java) source code or a single Microsoft Visual Studio 2017 project directory complete with all C# (.cs) source code.

Solution PreviewSolution Preview

These solutions may offer step-by-step problem-solving explanations or good writing examples that include modern styles of formatting and construction of bibliographies out of text citations and references. Students may use these solutions for personal skill-building and practice. Unethical use is strictly forbidden.

import java.util.ArrayList;
import java.util.List;

public class Seller {

private String username;
private String password;
private int balance;
ArrayList<Product> productlists;

static ArrayList<Seller> sellerlist = new ArrayList<>();

public Seller(String username, String password, int balance, ArrayList<Product> productlists) {
this.username = username;
this.password = password;
this.balance = balance;
this.productlists = productlists;

public String getUsername() {
return username;

public void setUsernamename(String username) {
this.username = username;

public String getPassword() {
return password;

public void setPassword(String password) {
this.password = password;

public void setproductdetail(ArrayList<Product> productlist) {
this.productlists = productlist;


public ArrayList<Product> getproductdetail() {
return productlists;



By purchasing this solution you'll be able to access the following files:

50% discount

$230.00 $115.00
for this solution

or FREE if you
register a new account!

PayPal, G Pay, ApplePay, Amazon Pay, and all major credit cards accepted.

Find A Tutor

View available Java Programming Tutors

Get College Homework Help.

Are you sure you don't want to upload any files?

Fast tutor response requires as much info as possible.

Upload a file
Continue without uploading

We couldn't find that subject.
Please select the best match from the list below.

We'll send you an email right away. If it's not in your inbox, check your spam folder.

  • 1
  • 2
  • 3
Live Chats