When a class extends more than one classes then it is called multiple inheritance. Java doesn’t support multiple inheritance whereas C++ supports it, this is one of the difference between java and C++.Refer:Why java doesn’t support multiple inheritance? Q) What is Polymorphism and what are ...
HashMapis a very powerful data structure inJava. We use it everyday and almost in all applications. I would suggest you to visit tutorial for more details:https://crunchify.com/hashmap-vs-concurrenthashmap-vs-synchronizedmap-how-a-hashmap-can-be-synchronized-in-java/ Interview Questi...
Functional interfacescompletely changed how we look at both fundamental building blocks of Java language. You cannot skip this question if your resume says you work on Java 8. In the linked tutorial, I will show you the correct scenarios, which will help you crack some complex interview questio...
Java 8 has been released in March 2014, so it’s one of the hot topics in java interview questions. If you answer this question clearly, it will show that you like to keep yourself up-to-date with the latest technologies. Java 8 has been one of the biggest releases after Java 5 anno...
This enables polymorphism, as the method called depends on the type of the object rather than its reference. Overriding allows customization and specialisation in subclasses while maintaining a common interface defined by the superclass. 13. What is the role of the 'final' keyword in Java? The ...
Another useful interview strategy is to review potential Java interview questions in advance. Let’s check out examples of some of the top Java interview questions. Also, each question includes some information that can help refresh your memory. ...
11. What is polymorphism, and how is it implemented in Java/Python? In OOP, polymorphism allows you to use the same name for different methods that have different behaviors depending on the input. This is commonly used in combination with inheritance. For example, say we have a parent class...
However, HQL is fully object-oriented and understands concepts like inheritance, polymorphism and association. Hibernate is an open source project from Red Hat Community and used worldwide. This makes it a better choice than others because learning curve is small and there are tons of online ...
Q31. What do you understand about polymorphism in Python? Polymorphism is a feature that allows methods to have multiple functionalities with the same name. For instance, if a parent class contains a method ABC, the child class can contain the same method with its own unique set of variables...
It is performed during run time, so it is known as run-time polymorphism.Learn via our Video Courses 4. Distinguish between classes and interfaces in Java. ClassInterface A class is a blueprint for the creation of objects with the same configuration for properties and methods An interface is...