What is the difference between interface and abstract class in
Java? is the most frequently asked question in Java Interview and
it is one of the toughest question to answer. After the introduction
of Java 8 this has become quite tougher because the interfaces for
both static and default methods can be included in the default
methods Cheap Hydro Flask 60 OZ , in this new version.
There are some interview panel members who also check for the
practical experience of the candidates on when to use interface in
Java rather than just focusing on the difference. This is very tough
to answer and one must have a very good knowledge about
interface and abstract class in Java. Therefore, you need to keep in
mind that if you are preparing for Java Programming Interview
then you also refer a book of Java concepts named as Java
Programming Interview Exposed.
In it, there are lots of important questions and topics included
Eg: multi threading, OOPS concepts, collections, frameworks
similar to Hibernate and Spring, data structure, unit testing and
algorithms apart from that recent technology questions like Scala,
Android, and other JVM languages.
Abstract class vs Interface in Java
1) An Interface is an interface and an abstract class is a class and
this is the major difference between abstract class and an interfacewhich implies that by extending the abstract class it is not possible
to extend another class as Java does not support multiple
inheritances but it is possible to implement multiple inheritance in
Java.
2) It is not possible to create a non-abstract method in an interface,
is the second difference between interface and abstract class and it
is by default abstract. You can develop a non-abstract method in
abstract class. With the help of abstract keyword a class which
does not contain any abstract method can be made abstract.
3) For type declaration interface is best suited and for reusing the
code and evolution perspective abstract class is used. Why there is
a need to use interface for type declaration can be explained by the
book ??ffective Java??very well.
4) Abstract class are faster when compared to interface because
before calling any overridden method in Java there is a search
carried out by the interface. Although it is of not that importance it
works well in time critical application.
5) If a new method is added in an existing interface then the
interface which is present breaks all the implementation and it is
necessary to implement all the clients that is not advisable. A
default implementation can be provided with the help of an
abstract class for a new method without breaking the current
clients.
Total Views: 24Word Count: 398See All articles From Author
In the time of today it is very important to build up your financial ground before you climb on any ladder of life. Life without financial support is impossible and only few people have the knowledge of balancing life with finance. Money is something that does not stick to one pocket long, so it is very important that you know how to save it, manage it and manage it when important. There are many a time when people need to use money but it gets misused because of the lack of knowledge, awareness and management.


Therefore, it becomes very important for every person to have a complete knowledge of financial education. A good financial education can provide you full confidence on your money and will also allow you to acquire control, simplicity and stability. There are many professionals that take such important task on their shoulder and provide complete knowledge of financial education with keen and interest. However, taking the help of the best professionals in this concern can help you from start till and end and allow you make the important decisions of your life.


The best financial educators are reputed worldwide for providing high quality service for financial education. Their professionals skilled in this area are committed to educate people and help their make important financial decisions of their life. Their instant efforts will help you understand that how money works in the world and what are the ways in which you can earn or save some for your credits.


Their financial education services are the one way to you dreams as their assistance will clearly tell you how to use the money and where to invest in order to increase you financial background. Whether you are in your native land or away from it, their professionals will allow you to gain complete knowledge of the place and the investments.


Their financial advisors will help you at every stage of your life and will allow you manage earnings and maintain the credits of life. They will see your interest, help you form a network and create contacts that will help you keep all the information about finance. They are also linked to many of the financial education professionals around the world, so you can also see the list of adviser location from their centre and contact according to your own comfort. You can also make a contact to their advisors directly to get instant and complete knowledge.

If you need best financial education professionals ever. Just visit our official website @ Collect You Fine Arts In Photographs For Art Galleries

Posted by robin129 on September 16th, 2014


Today, the artist become able to secure their create work. This has become possible with the help of the fine arts photography service. Many people approach to the fine arts photogr. Cheap Jerseys Cheap Jerseys Wholesale Cheap Wholesale Jerseys Cheap NFL Jerseys From China Cheap Basketball Jerseys Cheap MLB Baseball Jerseys Wholesale Jerseys Cheap Adidas Superstar Shoes cheap adidas superstar gold cheap adidas superstar sale