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

Program for solving the producer consumer problem, For this assignment we w...

For this assignment we will be solving the producer-consumer problem with a bounded buffer. You are required to implement this assignment in Java. There are three components in thi

Homework, Pick your favorite geometry formula (e.g., area of a square, peri...

Pick your favorite geometry formula (e.g., area of a square, perimeter of a triangle …) and implement it in Java. Demonstrate your code compiles and runs without issue (You can use

Project on web service with complex data, This project is based on the team...

This project is based on the teams example of chapter 1. Instead of teams, you will consider employees working in a department in a company. (Departments and employees are analog

Enumerate the java program development and execution steps, Java Program De...

Java Program Development and Execution Steps Java program normally go through five phases. These are 1. Edit, 2. Compile, 3. Load, 4. Verify and 5. Execute Co

Sum of six digits, How do I write a java program that enters a six digit nu...

How do I write a java program that enters a six digit number and takes the sum of the six digits?

What are the basic components of jsp?, There are two different types of dat...

There are two different types of data in a JSP page. 1. Static part which occurs copied directly to the response by the JSP Engine. 2. Dynamic part, which have anything that

How can we define a pixel, How can we define a Pixel? It is the smallest ...

How can we define a Pixel? It is the smallest number of element of image that is spread along with regular array on display and each constituent consist of particular color.

Explain the java.net package, Explain The java.net package Each package...

Explain The java.net package Each package describes a number of classes, interfaces, exceptions, and errors. For instance, the java.net package contains these, classes, interfa

Functions in javascript, These are the central working units of JavaScript....

These are the central working units of JavaScript. Almost all the scripting code employs one or more functions to obtain the desired result. If you desire your page to provide cert

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