Neeyamo Enterprise Solutions Developer Interview Questions and Answers

Java is a high-level, object-oriented programming language used for developing desktop, web, and mobile applications.

• Java is platform-independent, meaning it can run on any operating system

• It is known for its security features, making it a popular choice for enterprise applications

• Java code is compiled into bytecode, which can be run on a Java Virtual Machine (JVM)

• Popular frameworks and tools for Java development inclu

Yes, Java is an object-oriented programming language.

• Java supports the four main principles of OOP: encapsulation, inheritance, abstraction, and polymorphism.

• Objects are created from classes in Java.

• Java has access modifiers such as public, private, and protected to control access to class members.

• Java also has interfaces, which allow for multiple inheritance.

• Example: class Car { private String make; public void setMak...read more

A linked list is a data structure that stores a sequence of elements. A doubly traversable linked list allows traversal in both directions.

• Linked list is a collection of nodes where each node contains a data field and a reference to the next node.

• Doubly traversable linked list has an additional reference to the previous node.

• Traversal can be done in both directions using the next and previous references.

• Example: Doubly...read more

JIT compilation stands for Just-In-Time compilation, a technique used by some programming languages to improve performance.

• JIT compilation compiles code at runtime instead of ahead of time

• It can improve performance by optimizing code based on runtime information

• JIT compilation is used in languages like Java, .NET, and JavaScript

• Examples of JIT compilers include HotSpot for Java and V8 for JavaScript

Subjects in observable are streams of data that emit values over time.

• Subjects are both an observer and an observable

• They can multicast data to multiple subscribers

• They can emit new values using next() method

• Example: BehaviorSubject, ReplaySubject, AsyncSubject