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

I need java expert with tomcat tuning experience, I need Java expert with t...

I need Java expert with tomcat tuning experience Project Description: Require a Java expert to fix memory issues with tomcat. Skills required: Java, Apache

Lesson 20 project How far to the Line, I do not understand how to do this? ...

I do not understand how to do this? can someone help me?

Explain the concept of multi-threaded- java, Explain the concept of Multi-T...

Explain the concept of Multi-Threaded- JAVA Java has a concept of concurrency wired right in to the language itself. This works out more cleanly than languages where concur

Describe life cycle of thread, Describe life cycle of thread. Threads f...

Describe life cycle of thread. Threads follow the single flow of control. A thread is execution in a program. The life cycles of threads are listed below: Newborn state: A

What are adding methods, What are adding methods? A subclass isn't rest...

What are adding methods? A subclass isn't restricted to changing the behavior of its superclass. It can also add fully latest techniques and fields that are not shared along wi

Website for swapping and selling books, Website for swapping/selling books ...

Website for swapping/selling books Project Description: Seeking a website where students can sell and buy books. I want them to swap books as well. Payment options are requir

Taking in command line arguments, Taking in Command Line Arguments In J...

Taking in Command Line Arguments In Java, the program can be written to accept command-line-arguments. Example Code:  command-line arguments /*  This

Program, Decode the Code Smugglers are becoming very smart day by day. Now ...

Decode the Code Smugglers are becoming very smart day by day. Now they have developed a new technique of sending their messages from one smuggler to another. In their new techn

List the java class library, list The Java Class Library? Java holds an...

list The Java Class Library? Java holds an extensive library of pre-written classes you can use in your programs. These classes are separated into groups known as packages. Th

Java and Arrays, AskWrite an application that uses an Array to store 10mess...

AskWrite an application that uses an Array to store 10messages of type String. You will store this Array with 10 messages of your choosing. For example, a message could be “I love

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