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 the essential api concepts associated with j2me, Question : (a)...

Question : (a) Class file verification in CLDC is different from class file verification in J2SE. Explain and discuss how and why it is different, illustrating your answer

Prepare a new fishing app, New Fishing App Project Description: A new...

New Fishing App Project Description: A new app for iPhone providing a GPS connected map of the fishery you are fishing at and other logged in users who are also fishing at th

Differentiation jdk 1.02 event model and event delegation, Differentiation ...

Differentiation the JDK 1.02 event model and the event-delegation model introduced with JDK 1.1?

Time date millis method, I neeed to create a basic code to do the following...

I neeed to create a basic code to do the following. the class is entry level and I would appreciate a brief explanation as to why you do each bit. Write a program that displays t

How does an exception permeate through the code, How does an exception perm...

How does an exception permeate through the code? An unhandled exception moves up the method stack in search of a matching When an exception is thrown from a code which is wrapp

Bidirectional currency conversion, Write a AXIS2 SOAP Java Web Service that...

Write a AXIS2 SOAP Java Web Service that performs a bidirectional currency conversion for the following currencies- GBP, EUR and USD (American Dollar). You are allowed to hardco

On bluej, I need to write a program to assign values to the variable age an...

I need to write a program to assign values to the variable age and print the reason as major or minor.

Use of unicastremoteobject in rmi, What is the use of UnicastRemoteObject i...

What is the use of UnicastRemoteObject in RMI? Ans) The UnicastRemoteObject class gives support for point-to-point active object references using TCP streams. Objects that need

Help, Are you real? I dont want to get help from a computer

Are you real? I dont want to get help from a computer

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