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50 Senior Java Developer Interview Questions (ANSWERED) To Know in 2020

  Q1 :   What is JVM? Why is Java called the “Platform Independent Programming Language”? Answer A Java virtual machine (JVM) is a process virtual machine that can execute Java bytecode. Each Java source file is compiled into a bytecode file, which is executed by the JVM. Java was designed to allow application programs to be built that could be run on any platform, without having to be rewritten or recompiled by the programmer for each separate platform. A Java virtual machine makes this possible, because it is aware of the specific instruction lengths and other particularities of the underlying hardware platform. know more java training Q2 :   What is Spring? Answer Spring  is an open source development framework for enterprise Java. The core features of the Spring Framework can be used in developing any Java application, but there are extensions for building web applications on top of the Java EE platform. Spring framework targets to make J2EE development easier t...

Javarevisited

  One of the things I tried with this roadmap is that to keep the exposure as short as possible, I have avoided mentioning many alternatives, particularly when it comes to libraries and tools, and stick with industry-standard tools and libraries. I have kept it simple so that most of the people can follow it and only included the essential stuff, but if there is enough desire, I am thinking to post T he Java Developer RoadMap 2.0  to add some advanced things like JVM internals, Profiling, Java 9 Modules, Cloud Native Java, different cloud platforms like AWS, GCP, or Azure, and more advanced tools like Chef for DevOps and much more. If you are interested, you can find a more exhaustive list of separate blog pots, which I have listed in the further learning section. Anyway, let's go through this Java Developer RoadMap to understand how to become a Java developer in 2021. Btw, you by no means need to understand everything on this roadmap to become a rockstar d...