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

What is meant by semantic error, What is meant by semantic error? Occur...

What is meant by semantic error? Occur while a statement executes and has an effect not intended through the programmer and Frequently times occur only in unusual & infrequent

I want java a web technologies expertise, I want Java a Web Technologies ex...

I want Java a Web Technologies expertise Project Description: Good Java knowledge about 4-5 years to develop online enterprise tool. Seeking someone who is interested to w

Upload a file in struts? , In JSP page give the code as given below: en...

In JSP page give the code as given below: enctype="multipart/form-data" name="fileForm" scope="session">     Please select file here that you would like to upload:

Calculate the kilometer within an hour, Calculate the kilometer within an h...

Calculate the kilometer within an hour? class Car { String licensePlate = ""; // e.g. "New York 543 A23" double speed = 0.0; // in kilometers per hour doubl

Java program to calculate the commercial value of the stamps, You are asked...

You are asked to write a Java program to calculate the commercial value of the stamps owned by a philatelist. Each philatelist has a name and a collection of stamps. The stamps can

Exportobject of unicastremoteobject do, What does the exportObject of Unica...

What does the exportObject of UnicastRemoteObject do? Ans) Exports the remote object to make it available to receive incoming calls, using the certain supplied port. If port not

Explain the different kinds of exceptions, Explain The different kinds of e...

Explain The different kinds of exceptions ? Checked Exceptions  : Environmental error in which cannot necessarily be detected through testing; e.g. broken socket, disk full,

1. Create a text file (you can name it sales.txt) that conta, 1. Create a t...

1. Create a text file (you can name it sales.txt) that contains in each line the daily sales of a company for a whole month. Then write a Java application that: a. asks the user fo

Explain what is naming applets in java applets, Explain what is Naming Appl...

Explain what is Naming Applets in java applets? You can give an applet a name by using the NAME attribute of the APPLET element. This allows communication between different app

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