Modify user profile class, JAVA Programming

Assignment Help:

Modify your UserProfile class to meet the following requirements:

  1. It must include a field called wall to store an ArrayList of wall posting objects. It must also provide a getter called getWall() that returns the ArrayList of wall posting objects. The list should initially be empty for a newly created UserProfile.
  2. It must provide a method called postToWall() that takes two parameters: the author of the posting (a user profile, not a string) and a string message. This method should add a new wall posting with the given contents.

Note that wall postings should be stored in reverse-chronological order, meaning that newly created posts should be stored at the beginning of the list, not at the end. Also, this method should ensure that the total number of posts does not exceed 20. Once the wall gets that full, delete the oldest post to make room for a new one. Study the API documentation for ArrayList to find suitable methods to accomplish this arrangement. You may assume that the clock is consistent, that is, postings created more recently will also have a more recent time stamp.


Related Discussions:- Modify user profile class

What are the advantages of multimedia presentations, What are the advantage...

What are the advantages of multimedia presentations? Write any five. Multimedia presentation is a excellent tool for effective communication: Advantages: 1. Easy to make l

Pebblemerchant, how to write a java program for pebble merchant

how to write a java program for pebble merchant

What is portableremoteobject.narrow() method , What is PortableRemoteObject...

What is PortableRemoteObject.narrow() method and what is used for?                Ans) Java RMI-IIOP gives a mechanism to narrow the the Object you have received from from your

What is struts validator framework, Struts Framework gives the functionalit...

Struts Framework gives the functionality to validate the form data. It can be use to authenticate the data on the users browser as well as on the server side. Struts Framework emit

Write responsibility of developer-executive -support team, Write responsibi...

Write responsibilities of the followings 1. Developer a) Module level design. b) Coding c) Unit testing 2. Executive Team a) Responsible for the day to day operations. b) A

Elliptic curve, In this project you need to write a program called "ECC.jav...

In this project you need to write a program called "ECC.java"to implement Elliptic Curve encryption/decryption. Specifically, your program will read parameters, plaintext and ciph

Discuss the purpose and use of the java adapter classes, Question: (a) ...

Question: (a) Discuss the Java approach to event processing by explaining how event handling works in Java. Use an example to support your answer. (b) Explain what is a ‘

I want someone to fix some bugs in a java app, I want someone to fix some b...

I want someone to fix some bugs in a java app Project Description: I have a small app in java, but it has some issues, the app is running. But we need to make it work more st

#, Consider the following code? What input is needed for x in order for the...

Consider the following code? What input is needed for x in order for the sum variable that is output at the end of the code to be 12 ? (In other words: what do I need to make X be

Extraction of articles, Extraction of articles The software I'm looking ...

Extraction of articles The software I'm looking to build: 1. Extraction of articles from various sites 2. Format the content to re-post 3. Automate the process Skill

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd