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

Palindrome, A palindrome is a string that reads the same from both the ends...

A palindrome is a string that reads the same from both the ends. Given a string S convert it to a palindrome by doing character replacement. Your task is to convert S to palindrome

Develop wechat program to integrate with sugarcrm, Wechat and SugarCRM P...

Wechat and SugarCRM Project Description: Seeking the partner able to develop wechat program to integrate with SugarCRM. Wechat Official Account able to perform some functi

What are stored procedures? how is it useful?, A stored procedure is a set ...

A stored procedure is a set of statements/commands which reside in the database. The stored procedure is pre-compiled and keeps the database the effort of parsing and compiling sql

Program to insert item in tree, public class TreeTest {     public static v...

public class TreeTest {     public static void main(String args[])     {         Tree t = new Tree ();         System.out.println("Populating");         t.insertItem(1);         t

Describe features of spring, Here are some features of spring:- ? Lightw...

Here are some features of spring:- ? Lightweight: spring is lightweight when it comes to size and transparency. The essential version of spring framework is around 1MB. And t

Code, pebble merchant

pebble merchant

What is dynaactionform, A specialized subclass of ActionForm that permits t...

A specialized subclass of ActionForm that permits the creation of form beans with dynamic sets of properties (configured in configuration file), without requiring the developer to

I want fitlife app for android - ios, I want FitLIFE app for Android, IOS, ...

I want FitLIFE app for Android, IOS, Windows Project Description: Hello, I want to develop an app for Android, IOS and Windows Phone. This app will be work with open source B

Coarse grained soa, Coarse Grained SOA : Services are also could be coa...

Coarse Grained SOA : Services are also could be coarse grained. E.g:   You may have a purchase element with individual functions to make a purchase order, add line items, and a

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