Blog Archives

04: ♦ Top 10 most common Core Java beginner mistakes

Mistake #1: Using floating point data types like float or double for monetary calculations. This can lead to rounding issues.

In the above code, 2, 4, and 5 are correct and 1 and 3 are incorrect usage leading to rounding issues. So, either use BigDecimal properly as shown in 2…...

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02: ♥♦ Java Compile-time Vs Run-time Interview Q&As

During development and design, one needs to think in terms of compile-time, run-time, and build-time. It will also help you understand the fundamentals better. These are beginner to intermediate level questions. Q1. What is the difference between line A & line B in the following code snippet?

A1. Line

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03: ♦ 9 Core Java Concepts you can’t afford to not know

Q1. How will you go about explaining the following Java concepts to a beginner who is starting to learn Java? 1. Process Vs Threads 2. Heap versus Stack 3. Local variables versus instance variables 4. How do threads communicate with each other? 5. Are Java methods reentrant? 6. Does Java…...

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01: ♦♥ 17 Java overview interview questions and answers

Q1. Why use Java? A1. One needs to use the best tool for the job, whether that tool is Java or not. When choosing a technology to solve your business problems, you need to consider many factors like development cost, infrastructure cost, ongoing support cost, robustness, flexibility, security, performance, etc.

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600+ Java/JEE Interview Q&As

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200+ FAQs for Quick Java Interview Prep

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16 Technical Key Areas to standout

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80+ step by step Tutorials conducive to self-taught projects

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