Blog Archives

01: 19 Java 8 Functional Programming (FP) Interview Q&As

Java 8 Functional Programming Interview questions focusing on FP. Getting a good handle on Java OOP concepts and FP concepts are very important NOT only from writing quality code perspective,

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03: Q16 – Q17 Java Polymorphism vs Overriding vs Overloading

Polymorphism is the ability of a class instance to behave as if it were an instance of another class in its inheritance tree, most often one of its ancestor classes.

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04: Q18 Explain abstraction, encapsulation, Inheritance, and polymorphism with the given Java code?

Q18. Given code:

A18. Firstly, let’s take abstraction and encapsulation as the difference is subtle. Abstraction is often not possible without encapsulation because if a class exposes its internal state,

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05: Q19-Q24 How to create a well designed Java application?

A software application is built by coupling various classes, modules, and components. Without coupling, you can’t build a software system. But, the software applications are always subject to changes and...

06: Q25 – Q32 SOLID design principles interview questions & answers for Java developers

Design principles interview questions & answers for Java developers so that you can expand your OOP skills to design robust Java apps Q25. What are the SOLID design principles? …...

07: Q33 Top 5 OOP tips for Java developers

Tip #1: Tightly encapsulate your classes. A class generally contains data as well as methods, and is responsible for the integrity of its own data. … Read more ›...

08: Write code to add, subtract, multiply, and divide given numbers?

A trivial coding example (i.e. a Calculator) tackled using the following programming paradigms in Java not only to perform well in coding interviews, but also to learn these programming paradigms.

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5 FAQs on transforming your thinking from OOP to FP

Functional Programming (i.e. FP) is prevalent in Big Data (i.e. Spark programming, etc) roles. A must know for Big Data Engineers and Analysts.

One needs to get used to the transformation from imperative programming to functional programming.

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Q1 – Q10 Java OOPs interview Q&As

If you don’t get Java OOPs interview questions & answers right in the job interviews you can say OOPS !!!! to your Java interview success. Q1. … Read more ›...

Why favour composition over inheritance?

This is not only one of the most popular Java OOP Interview Questions & Answers asked 90% of the time in job interviews, but also a key OOP concept you...

Answers are detailed to be useful beyond job interviews. A few Q&As each day will make a huge difference in 3 to 24 months to go places depending on your experience.