What is an abstract class in java, JAVA Programming

Question:

(a) 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. Explain with suitable Java examples.

(b) What is an abstract class in Java? Describe the importance of implementing these classes in programs. Illustrate with an example of your own.

(c) Show the Java approach to event processing by explaining how event handling works in Java. Use an example to support your answer.

(d) Describe what is a ‘Listener' in Java using an appropriate example?

Posted Date: 11/8/2013 5:34:01 AM | Location : United States







Related Discussions:- What is an abstract class in java, Assignment Help, Ask Question on What is an abstract class in java, Get Answer, Expert's Help, What is an abstract class in java Discussions

Write discussion on What is an abstract class in java
Your posts are moderated
Related Questions
Explain System Colors in java 1.1? In Java 1.1, the java.awt.SystemColor class is a subclass of java.awt.Color that gives color constants in which match native component colors

The break statement is utilized for terminating the current While or For loop and after that transferring program control towards statement just after the terminated loop. The foll

Project Description: A java application is required with the subsequent features 1. Ability to use GSM Modem (and/or Mobile phones) or SMPP to send and receive SMS messages

In this programming assignment, you are going to implement the simple distributed ticket reservation system (DTRS) from Assignment 1 in CORBA using Java IDL. In addition to the thr

When is AlreadyBoundException thrown and by which method? Ans) AlreadyBoundException is thrown by bind(String name) method when a remote object is already registered with the re

Assignment Help >> JAVA Programming Learning Outcomes: 1. Use different program control statements in a programming language 2. Demonstrate the use of arrays with a programming

Project Description: I need someone to prepare an android app for me and provide it to me asap. The app details to be provided on pm Skills required: Java, Android

A specialized subclass of ActionForm that permits the creation of form beans with dynamic sets of properties (configured in configuration file), without requiring the developer to

1 occurrence of "oog", and 1 occurrence each of "goog", "oogo",

Both Java and C++ use same syntax and are Object Oriented, but there are several differences between Java and C++:   1.    Java does not use pointers. Pointers are inherently