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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.
Support for Web and Enterprise Web Applications Java offers an extensive support for the development of web and enterprise applications Servlets, JSP, Applets, RMI, JDBC, EJBs
Extraction of articles The software I'm looking to build: 1. Extraction of articles from various sites 2. Format the content to re-post 3. Automate the process Skill
What is numeric promotion? Numeric promotion is the conversion of a smaller numeric type to a larger numeric type, so that integer and floating-point operations may take place.
Question 1 What do you mean by Java Virtual Machine? Question 2 Write a simple Java program to display a string message and explain the steps of Compilation and execution in Jav
What are the advantages that Java's layout managers provide over traditional windowing systems ?
Who Can an Applet Talk To? By default an applet can just open network connections to the system from that the applet was downloaded. This system is known as the codebase. An ap
Describe the if statement in Java ? All but the most trivial computer programs required to form decisions. They test a condition and operate in a different way based on the out
What is Overriding? When a class explains a method using the similar name, return type, and arguments as a method in its superclass, the method in the class overrides the metho
While you declare a variable in a function, the variable can be accessed within that function only. While you exit the function, the variable is destroyed. These variables are ca
Explain the user defined Exceptions. User Defined Exceptions are the exceptions which are defined by user for specific purposed. This enables custom exceptions to be generated
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