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

Write the hashcode() method of java.lang.object, Write the hashCode() metho...

Write the hashCode() method of java.lang.Object Anytime you override equals() you should also override hashCode(). The hashCode() method should ideally return the similar int f

Homography matrix, Open A java applet should appear on your screen. C...

Open A java applet should appear on your screen. Click on File, OpenImage and select Asterix. Check Homography box. By clicking on the images you can select points. The c

Need cocos2d-x developer - puzzle game, cocos2d-x puzzle game for kids P...

cocos2d-x puzzle game for kids Project Description: I am seeking a skilled, reliable, and not very expensive cocos2d-x developer (with experience with iOS, Android, and prefe

Garbage collection model, This assignment is about experimenting with the J...

This assignment is about experimenting with the Java runtime system's garbage collection model, and comparing it with the C++ manual memory allocation model. Below is the Garbage J

Functions in javascript, These are the central working units of JavaScript....

These are the central working units of JavaScript. Almost all the scripting code employs one or more functions to obtain the desired result. If you desire your page to provide cert

What is jms, Java Message Service: An interface executed by most J2EE conta...

Java Message Service: An interface executed by most J2EE containers to give point-to-point queueing and topic (publish/subscribe) behavior. JMS is frequently used by EJB's that req

I need java web applications development, I need Java Web Applications Deve...

I need Java Web Applications Development Project Description: MySQL databases, Oracle. SVN, GIT team collaborations. Skills required: Java, SQL, Software Architectur

I want a viral script for facebook likes, I want a viral script for faceboo...

I want a viral script for facebook likes Project Description: I am seeking someone to sell me or make for me a VIRAL script for facebook likes and auto share. Skills requi

What is javaserver faces technology, A framework for building server-side u...

A framework for building server-side user interfaces for Web applications is written in the Java programming language.

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