What are the four main pillars of Object-Oriented Programming, and briefly explain each one? How does Java achieve abstraction, and why is it essential in OOP? Explain the difference between ...

Here are 10 tough Java garbage collection interview questions that experienced developers and DevOps professionals should ace.

Toughest core Java interview question While seemingly simple on first glance, the toughest Java interview question ever asked is this: Given the following snippet of Java code in Eclipse, in five ...