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

How would you interact between servlets and applets? , We may use the java...

We may use the java.net.URL and java.net.URLConnection classes to start a standard HTTP connection and "tunnel" to a Web server. The server then gives this information to the s

What are synchronized methods and synchronized statements, What are synchro...

What are synchronized methods and synchronized statements? Synchronized methods are methods that are used to control access to an object. A thread only implements a synchronize

What is the difference between SOA and a Web Service, Normal 0 ...

Normal 0 false false false EN-US X-NONE X-NONE

Write a program of else statement in java, Write a program of else statemen...

Write a program of else statement in java? The else statement in Java // This is the Hello program in Java class Hello { public static void main (String args[]) { if (

I need social mobile application, Project Description: I'm using a php s...

Project Description: I'm using a php script called phpfox on my site its work as social network . So I need is to use this script as CMS for my application. What users wil

Program, a program that groups items according to their number

a program that groups items according to their number

Need help, please fix polygon method, code below: /** * @(#)AnimationExtr...

please fix polygon method, code below: /** * @(#)AnimationExtraCredit.java * * AnimationExtraCredit Applet application * * @author * @version 1.00 2013/5/5 */ import jav

Plug-in for adobe after effects, Plug-in for Adobe after Effects Project...

Plug-in for Adobe after Effects Project Description: We are seeking software engineers to create a plug-in for Adobe after Effects (CS4 and above) that allows 3D extrusions f

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