What is an abstract class in java, JAVA Programming

Assignment Help:

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?


Related Discussions:- What is an abstract class in java

What are the important beans lifecycle methods, There are two significant b...

There are two significant bean lifecycle methods. The first one is setup which is called when the bean is loaded on to the container. The second method is the teardown method which

Error, UnsupportedClassVersionError

UnsupportedClassVersionError

Difference between inheritance and polymorphism, Question 1: a) What is...

Question 1: a) What is the meaning of an object-oriented programming? b) List eight simple types of data in Java c) Explain how objects and classes are closely related.

Explain the for loop in java, Explain the for loop in java? // This is ...

Explain the for loop in java? // This is the Hello program in Java class Hello { public static void main (String args[]) { System.out.print("Hello "); // Say Hello

How to draw polygons in java, How to draw Polygons in java? In Java rec...

How to draw Polygons in java? In Java rectangles are defined through the position of their upper left hand corner, their height, and their width. Therefore it is implicitly sup

Want an expert with knowledge of uml diagrams, Want an expert with knowledg...

Want an expert with knowledge of UML diagrams and writing experience for pages writing including diagrams. This project needs 3-4 pages of technical writing about tickets reserv

What is an applets, What is an Applets? Applets: These are small java...

What is an Applets? Applets: These are small java programs. They can send from one to another computer over internet by using Applet Viewer which supports java. Applets

Relation between stack and heap, Relation between Stack and Heap Stack ...

Relation between Stack and Heap Stack and heap are two significant memory areas. Primitives are created on the stack whereas objects are created on heap. This will be further c

Virtual function, What is virtual function? While derived class override...

What is virtual function? While derived class overrides the base class method by redefining the same function, after that if client wants to access redefined the method from der

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd