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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.
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Draw an inheritance hierarchy to represent a shoe object. The base class should have derived classes of Dress Shoes, Tennis Shoes and Boots.
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In RPC the method invoker waits for the method to finish implementation and return the control back to the invoker. Therefore it is completely synchronous in nature. Whereas in JMS
1) Central museum is one of the famous tourist places in london. They ask comments from every customer visiting them. For that, they maintained one register to store visitor;s com
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What does WAN stand for? Wide Area Network - A network in that computers are separated through great distances classically across cities or even continents.
Implement a program that can compute your taxes (assume year 2012, as- sume a form 1040EZ). The form should ask for your ling status (single, married), income, deductions and cred
String concatenation and comparison public class StringTest { public static void main(String[] args) { int i = 4; int j = 5; System.out.println ("Hello" + i); // wi
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