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

Farm production system, Farm Production System Project Description: I...

Farm Production System Project Description: I require software that will allow me to input/record the daily production of our farm and allow me to view the data back in the o

Describe the concept of encapsulation, Describe the concept of Encapsulatio...

Describe the concept of Encapsulation  Encapsulation is a technique which is used for hiding properties and behaviors of an object and allowing outside access only as appropria

Describe member variables vs. local variables, Describe Member Variables vs...

Describe Member Variables vs. Local Variables ? class Car { String licensePlate = ""; // member variable double speed; = 0.0; // member variable double maxSp

Image caching with html, In the airplane program, you may have noticed that...

In the airplane program, you may have noticed that the loading of each image appears to be jerky, erratic, or slow, and that the URL for each image flickers in the status bar each

Password Generator Software, In this exercise, I want you to generate passw...

In this exercise, I want you to generate password based on random number generator. Develop an application that keeps track of the URL, username and password. I have listed few st

??????????, Ask question ##title.. ????? ?????#title.. ????? ?????#title....

Ask question ##title.. ????? ?????#title.. ????? ?????#title.. ????? ?????Minimum 100 words accepted#

Collections, Write a program to proove that HashSet maintains random order

Write a program to proove that HashSet maintains random order

Javascript validation, Javascript validation, JAVA Programming 1. Obtaining...

Javascript validation, JAVA Programming 1. Obtaining the new script: Download and save the attached comment CGI mailer script form-mail2.pl to your server''s cgi-bin directory, and

Why we intrested studying social implications of creation, Why should we, a...

Why should we, as computing professionals, be interested within studying the social implications of our creations? This is important Because of remaining the track of money wis

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