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

Explain jakarta struts framework, Jakarta Struts is open source execution o...

Jakarta Struts is open source execution of MVC (Model-View-Controller) pattern for the development of web based applications. Jakarta Struts is robust architecture and can be used

Assignment, For this Assignment, submit the following program: Create an ap...

For this Assignment, submit the following program: Create an application for an animal-fur trimming service. The business is open 15 weeks of the year, from April through July. The

The software or script to scan automotive ads, The software or script to sc...

The software or script to scan automotive ads Project Description: Looking for a company that made the script or application to search through pages of listings of automotive

What information is needed to create a tcp socket, The Local Systems IP Add...

The Local Systems IP Address and Port Number and the Remote System's IPAddress and Port Number.

Discuss features of java, Question 1 Discuss features of JAVA Question...

Question 1 Discuss features of JAVA Question 2 What are primitive data types? Discuss Question 3 Explain data conversion function ValueOf ()? Question 4 What are th

Code java and javascript in liferay, We need a serious programmer who will ...

We need a serious programmer who will code Java and Javascript in Liferay - open to bidding Project Description: Big Data project Prototype in Liferay. Big Data + User onl

Develop a 3d rolling alarm clock, Need to develop a 3D rolling alarm clock ...

Need to develop a 3D rolling alarm clock (Android) Project Description: I want an android app as 3D rolling alarm clock It should have sound effect when setting the alarm

Decision structures, for $9.95 per month, 10 hours of access are provided.A...

for $9.95 per month, 10 hours of access are provided.Additional hours are $2.00 per hour

Thread, what is join in java Thread

what is join in java Thread

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