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

Registered objects in a rmiregistry, How to get all the registered objects ...

How to get all the registered objects in a rmiregistry? Ans) Using list method of Naming Class.

Describe exception handling in java, Question A What are the difference be...

Question A What are the difference between an interface and an abstract class? Question B Describe Exception Handling in JAVA Question C Describe the following with resp

Admin panel to upload my html and psd templates, Admin panel to upload my h...

Admin panel to upload my html, php, psd templates Project Description: -Upload my psd file and convert -Login panel -Client login panel -Encryption code -Send dem

Bluej program, program to find the frequency of a digit in a number

program to find the frequency of a digit in a number

Threads, programming challenges

programming challenges

Array, public class Tester { static void test(int[] a) { int[] b = new in...

public class Tester { static void test(int[] a) { int[] b = new int[2]; a = b; System.out.print(b.length); System.out.print(a.length); } public static void main(String[] arg

IRWS AND CPP, There is this solution for cpp assignment code EM132495039, i...

There is this solution for cpp assignment code EM132495039, i need solution of this and another assignment as well kindly guide me

How can you performance tune your database?, 1. De normalizes your tables w...

1. De normalizes your tables where required. 2. Proper use of index columns: An index based on numeric parts is more efficient than an index based on character columns. 3. Re

Use the constructor, Can we use the constructor, instead of init(), to init...

Can we use the constructor, instead of init(), to initialize servlet? Ans) Yes. Of course you can use the constructor instead of init(). There's nothing to stop you. But you sho

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