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...
That’s why this question is one of the java interview questions for experienced professionals.Java offers many primitives to help with this, but it takes experience to select the right one in each particular situation. Often, a tradeoff needs to be made between efficiency on the one hand, ...
Spring Boot Interview Questions For Experienced (2 To 3 Years)11. What is Spring Boot, and what are its key advantages? Spring Boot is a robust framework that simplifies the development of Java applications by providing a streamlined and opinionated approach. It aims to minimize the required ...
The answer to this question can be explained step by step in the following way – JavaScript executes synchronous code using a call stack (LIFO – Last In, First Out). Each function call is pushed onto the stack and popped off once it finishes executing. Then we have an event loop in ...
That's all aboutC++ Interview Questions and answersfor both beginners and experienced programmers. If you have any other interesting question which was asked to you in any investment banks like Citi, Goldman Sachs, Barclays, Nomura, Deutsche Bank, Credit Suisse or any other financial service instit...
7. What are the important features of the Java 8 release? 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. ...
If you are not well versed in writing multi-threading code then this is real tricky question for you. This Java question can be tricky even for experienced and senior programmer, who are not really exposed to deadlock and race conditions. Key point here is order, if you acquire resources ...
A very good to-the-point question for the telephonic round. This is quite clear from the UML diagram of the Decorator pattern, as you can see the Component is associated with a Decorator. 3. When to use the Singleton design pattern in Java? (answer) When you need just one instance of...
Abstract classes and interfaces are used in java for defining the contract. But, what is the difference between them? When should we use interface over the abstract class and vice versa? It’s a great design question and asked a lot in java interviews. This post provides all the differences...
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...