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Modify your UserProfile class to meet the following requirements:
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.
Explain the library java.lang.Math ? The Java class library is huge. We will not cover it all presently. In fact, the remaining eight classes will focus mostly on the class lib
public class Foothill { public static void main(String[] args) { Client person_1 = new Client("Bruce Ruprecht", 16000, 10); Writer writer_1 = new Writer("Adam Buf
(CarbonFootprint Interface: Polymorphism) Using interfaces, as you learned in this chapter, you can specify similar behaviors for possibly disparate classes. Governments and compan
Describe java operators? An operator is a symbol which operates on one or more arguments to generate a result. The Hello World program is so easy it doesn't use any operators,
String is immutable in java : you can't change a string object but can replace it by creating a new object instance. Creating a new instance is rather expensive. //Non ef
Two types of bean injections are there:- 1. By setter 2. By constructor
what is multithreading in Java? Explain with example.
JMS ((java messaging service))is an acronym used for Java Messaging Service. It is Java's answer to formed software using asynchronous messaging. It is one of the official specific
What does the " abstract " keyword mean in front of a method and a class ?
Explain what is constructors ? It is frequent the case in which overloaded techniques are essentially the similar except that one supplies default values for a few of the argum
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