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 a code in java to explain the while loop in java, Write a code in jav...

Write a code in java to explain the while loop in Java? // This is the Hello program in Java class Hello { public static void main (String args[]) { System.out.print("

What is the use of mapmessage, A MapMessage carries name-value pair as its ...

A MapMessage carries name-value pair as its payload. Therefore its payload is same to the java.util.Properties object of Java. The values can be Java primitives or their wrappers

Describe inner classes in java, Describe Inner Classes in java? An inne...

Describe Inner Classes in java? An inner class is a class whose body is described inside another class, referred to as the top-level class. For instance: public class Queue {

Explain the term event handler, Explain the term Event Handler? An even...

Explain the term Event Handler? An event handler is a command that calls a function while an event happens, like as the user clicking a button.

Describe about basic java programming language, Describe about basic java p...

Describe about basic java programming language? 1. Study the Java programming language: its syntax, patterns, idioms, and styles. 2. Become comfortable along with object orien

Develop student furniture finder, Project Description: We are looking to...

Project Description: We are looking to prepare an app which allows the user (a student or an expat in a new country) to select from a list of furniture items to prepare a packag

Thread, what is join in java Thread

what is join in java Thread

Convert psd to android, Convert PSD to Android (UI only, no database) Pr...

Convert PSD to Android (UI only, no database) Project Description: I want someone highly proficient in Photoshop and Android SDK to change series of PSD files into live Andro

#title.swithcase, 2. Problem Description: A Java program needs to be writte...

2. Problem Description: A Java program needs to be written to display the result of following operations based input character. The table for input character with operations is : I

What is meant through semantic error, What is meant through semantic error?...

What is meant through semantic error? It is an error that a developer encounters while a statement is executed but it was not intended through him (the developer). Such errors ar

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