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Question:
(a) (i) Explain the concept of inheritance. Illustrate your answer with a suitable Java example.
(ii) Java does not support multiple inheritance but does provide the concept of ‘interface'. Explain how interfaces can help a programmer to implement multiple inheritance in their programs. Illustrate with suitable Java examples.
(b) What is an abstract class in Java? Explain the importance of implementing these classes in programs. Illustrate with an example of your own.
(c) Using a suitable Java example explain the term polymorphism.
Super() Constructer: It is used to call constructor of parent class. Should be the first statement in the body of constructor. Using this we can access private variables
Develop a simple polling (voting) web application according to the following specifications: Initially a page should be presented to the user where he can enter his/her name
How are this () and super() used with constructors? this() Constructors: is used to pointing current class instance. Can be used with methods or variables. Used to call
What is Constructor? A constructor is used to initialize a newly created object. It's called just after memory is allocated for the object. It can be used to initial
What are the different types of messages available in the JMS API? Ans) Message, TextMessage, BytesMessage, StreamMessage, ObjectMessage, MapMessage are the dissimilar messages
Assignment Your task in this assignment is to develop a Java program that can communicate with a real SMTP email server for sending emails. It should have a graphical user inter
how android applications are made using java.?
Write a program to add integer value? class AddInts { public static void main (String args[]) { int i = 1; int j = 2; System.out.println("i is " + i); System.out.println("
how do I use constructors in java and how do I apply them
Project Description: A web developer is required to finish a webcam site with basic account management and voting functionality. The website can make use of a third party fla
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