Good handle on Java OOP concepts and FP concepts are very important NOT only from writing quality code perspective, but also from job interviews perspective to be able to do well in written tests &
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01: 7 rules to remember on Java Generics for better understanding
Here are 7 rules to remember regarding Java Generics to understand Generics and handle interview and coding questions on Core Java. Object <– Fruit <– (Orange, Mango,… Read more ›...
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Login Register 100+ Free Java interview FAQs 80+ Free Big Data interview FAQs01: Java data types interview Q&As
Q1. How would you go about choosing the right data types for your application?
A1. Java is what is known as a strongly typed language.
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01: jvisualvm tutorial to sample Java heap memory
Java does not have a sizeof operator like C++ does. Java uses automatic memory management known as the Garbage Collection, hence it is not that important to evaluate size of...
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Login Register 100+ Free Java interview FAQs 80+ Free Big Data interview FAQs01: OOP vs FP with Java example – placing a trade
A Trade goes through 3 state changes – placed, filled, and settled. Let’s solve this simple problem using both OOP & FP approaches.
Place –>
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02: 10 Java String class interview Q&As
Java Collection interview questions and answers and Java String class interview questions and answers are must know for any Java developer as these two APIs are the most frequently used in your Java application code.
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02: 5 Java multithreading scenarios interview
Java interview questions & answers on multithreading scenarios to judge your experience in building applications with concurrency in mind. Q1. Can you give some scenarios where you built concurrent systems?...
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Login Register 100+ Free Java interview FAQs 80+ Free Big Data interview FAQs02: 9 Java Collection interview Q&As on choosing the right data structure
Choosing the right data structure is vital to get the job done with proper space vs performance trade-offs. Q1. What are the common data structures, … Read more ›...
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Login Register 100+ Free Java interview FAQs 80+ Free Big Data interview FAQs02: Java 8 Streams, lambdas, intermediate vs terminal ops, and lazy loading with simple examples
A stream is an infinite sequence of consumable elements (i.e a data structure) for the consumption of an operation or iteration. Any Collection<T> can be exposed as a stream. …...
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Login Register 100+ Free Java interview FAQs 80+ Free Big Data interview FAQs02: jvisualvm to detect memory leak – a quick tutorial style Java demo
This is a companion post to 8 Java Memory Management Interview Q&A demonstrating a memory leak scenario step by step with jvisualvm, which is a free profiling tool that gets...
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This online training is an improved and enhanced from our outdated book: Java/JEE Job Interview Companion (Sold 35,000+ copies) via Amazon.com. Amazon.com reviews | Good reads reviews
Thanks for your support in extending the membership. I am able to clear the tech interviews and started new job with a bank. I can definitely say that Java success played a major role in my success. -- Balakrishna D
I am Naidu, I have 4 years of experience in java/Java EE. Few months back i started attending interviews and brought you book "Core Java Career essentials" and gone through most of the questions. I have cracked more than 10 companies and now i have joined Product based company. I felt very happy and thought of writing a mail to you and you help in the form of blog and book. -- Naidu M
Hi Sir, Good Mrng,I am a big fan of you and your approach after reading your Java/J2EE Job Interview Companion book and can proudly say that I got my dream job with a Top tier 1 organization in India after preparing from your book.This eventually landed me in Australia. Wish to stay connected with you - Sai
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