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00: 16+ Tech Key Areas to go places as a Java Engineer or Architect

Java Engineers, Big Data Engineers & Java/Big Data Architects must have a good handle on these 16+ Tech Key areas. You can talk the talk in Java or Big Data job interviews & also walk the walk by gaining a reputation as a go to person.



00: Top 50+ Core Java interview questions answered – Q1 to Q10

These are must know Java interview FAQs. If you don’t get these Java interview questions right, you will not be getting an offer.

Q1. What is the difference between “==” and “equals(…)” in comparing Java String objects?
A1. When you use “==” (i.e.

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00: Top 50+ Core Java interview questions answered – Q11 to Q23

The focus is on Java OOP interview questions and answers. Q11. What is the difference between constructors and other regular methods? A11. Constructors must have the same name as the class name and cannot return a value. The constructors are called only once per creation of an object while regular...



00: Top 50+ Core Java interview questions answered – Q24 to Q36

Focus is on Java classes, interfaces and generics the interview questions and answers style. Java classes and interfaces are the building blocks. Q24. What happens when a parent and a child class have the same variable name? A24. … Read more ›...



00: Top 50+ Core Java interview questions answered – Q37 to Q42

As a Java developer, you may not need to know how the JVM works, but the most important topic that you must know is Java Garbage Collection. How the Garbage Collection and object referencing work in Java. Q37. What do you know about the Java garbage collector? … Read more...



00: Top 50+ Core Java Interview questions answered – Q43 to Q54

Q43. What can you tell about the performance of a HashMap compared to a TreeMap? Which one would you prefer? A43. A balanced tree does have O (log n) performance. The TreeMap class in Java maintains key/value objects in a sorted order by using a red-black tree. … Read more...



01: 12 Maven interview Questions & Answers

Q1. What is the difference between snapshot versions and release versions? A1. The term “SNAPSHOT” means the build is a snapshot of your code at a given time, which means downloading 1.0-SNAPSHOT today might give a different file than downloading it tomorrow or day after. … Read more ›...



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Java Interview FAQs

800+ Java Interview Q&As

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