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 rmi architecture, RMI uses a layered architecture; every of the lay...

RMI uses a layered architecture; every of the layers could be increased or replaced without affecting the rest of the system. The details of layers can be summarised as follows:

Java Project, How to start a java project? how to draw a flow chart?

How to start a java project? how to draw a flow chart?

Need android geolocation service app, Need Android GeoLocation Service App ...

Need Android GeoLocation Service App Project Description: I want an android service app that will run on the background. The app has to get the users location (latitude an

Javascript, Write a JavaScript program to prompt the user for the radius of...

Write a JavaScript program to prompt the user for the radius of a sphere and call function sphereVolume to calculate and display the volume of the sphere in the status bar.

How do i include static files within a jsp page, Static resources should al...

Static resources should always be contained using the JSP include directive. This way, the inclusion is performed just once during the translation phase. Do note that you should al

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 local variable is preferred over global variable, Why Local variable is...

Why Local variable is preferred over Global variable ? In my point of view Global variable has a few advantage along with Local variables is preferred because of the subsequent

Board Colourling, write a program to find the minimum no of colors to fill ...

write a program to find the minimum no of colors to fill a board where some of the elements of different color are already placed.

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