java, programming

Can you declare Abstract Class or Method Final in Java? If not, why? [New!!]

If you are wondering whether you can use both abstract and final modifier together with a class or method in Java then you are not alone. This is one of the frequently asked, theory based Java questions which is sometime tricky to answer, particularly if you don't have complete knowledge of Java fundamentals. The answer of this question is No, you can not declare abstract class or method final in Java because both abstract and final keywords are mutual exclusive. Anything which is abstract cannot be final and vice-versa. It's like a person cannot be living and dead at the same time.

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java, programming

Top 40 Object Oriented Programming [OOP] Interview Questions Answers in Java [New!!]

OOP Interview questions or Object-oriented programming and design interview question are an integral part of any programming job interviews like Java, C++, or C#. Since Java is an Object-oriented programming language, it's expected from Java developers that he is good at Object-oriented analysis and design and familiar with essential OOP concepts like Abstraction, Encapsulation, and Polymorphism. Object-Oriented Programming Interview question in Java is mainly based around fundamental OOP concept and how those are implemented in Java, like Abstraction OOP concept is implemented using an interface and abstract class, Encapsulation is using private keyword, etc.

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java, programming

Top 20 Stack and Queue Data Structure Interview Questions for 1 to 3 years Experienced [New!!]

Both Stack and Queue are two of the crucial data structure which is very useful in solving a lot of problems. They are not as fundamental data structures as an array or linked lists but they offer some unique advantages in terms of how you store and access elements. Stack is commonly known as LIFO data structure because the last element you put is the first one to come out while Queue is known as FIFO data structure. The elements are retrieved from the queue in the order they were inserted. Both of these data structure has several usages and are used to solve many common problems and to implement algorithms. 

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java, programming

Top 10 Hibernate Interview Questions and Answers for Java Developers – 3 to 5 Years Experienced [New!!]

Hibernate Interview Questions are asked on Java J2EE Interviews, mostly for web-based enterprise application development roles. The success and acceptability of Hibernate framework on the Java world have made it one of the most popular Objects Relational Mapping (ORM) solutions in the Java technology stack. Hibernate frees you from database-specific coding and allows you to focus more on utilizing powerful object-oriented design principles to implement core business logic. By using Hibernate you can switch between databases rather easily and also take advantage of out-of-box caching facilities provided by Hibernate, in terms of second-level cache and query cache.

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java, programming

50+ Java Collections and Generics Interview Questions with Answers [New!!]

Hello guys, If you are preparing for Java interviews then you may know that Java Generics and Collections are two of the most important topics, particularly Generics where some of the trickiest Java questions can be asked. They are also used to gauge your experience and depth of your Java knowledge, hence it's imperative for both beginners and experienced Java programmers to prepare this topic well. While the Java Collection framework provides an implementation of some command data structures like ListSetArray, Hash table, Queue, Stack, PriorityQueue, etc, Generics provides Type safety.

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