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

Create modeling tickets for a city subway system, For this assignment you'l...

For this assignment you'll create some classes for modeling tickets for a city subway system. The type of system we are modeling has these main features: Stations are grouped in

Data types in javascript, A value, the data assigned to a variable, may con...

A value, the data assigned to a variable, may contain any sort of data. Though, JavaScript considers data to fall into many possible types. Based on the type of data, certain opera

Pebble merchant., there is a pebble merchant. he sells the pebbles,that are...

there is a pebble merchant. he sells the pebbles,that are used for shining the floor.his main duty is to take the length of the room side but he sometines mistakes doing that and m

Programming, .Write a programme to create a webpage that prints the name of...

.Write a programme to create a webpage that prints the name of the STUDENT database in Wide Latin font and set the subtitle with description of the STUDENT to the screen. Set the

Arraya, what is arrays and how do they operate

what is arrays and how do they operate

Why you don''t need to import java.lang.*, Why You don't need to import jav...

Why You don't need to import java.lang.* There is one exception to the import rule. All classes in the java.lang package are imported by default. Therefore you do not required

What is final class, What is final class? A final class can't be extend...

What is final class? A final class can't be extended ie., final class might not be subclassed. A final method can't be overridden when its class is inherited. You can't alter v

Differentiate local and global variables, Differentiate Local and Global Va...

Differentiate Local and Global Variables? Local variables are the variables have limited scope although global have bigger scope Local variables are not accessed through others

Area under curve, write a program to find the area under thecurve y=f(x)bet...

write a program to find the area under thecurve y=f(x)between x=a and x=b, integrate y=f(x) between the limits of a and b. the area under a curve between two points can be found by

What is arpanet and who developed it, What is ARPANET and who developed it?...

What is ARPANET and who developed it? ARPANET stands for Advanced Research Projects. The initial reasons were to communicate along with and share computer resources between mainl

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