http://hibernate.org/ogm/

The power and simplicity of JPA for NoSQL datastores. Including support for associations, sub-classes, queries and much more. The ride has just begun, so come and join us!


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⁣Effective Java 2nd Edition

#book


⁣https://drive.google.com/file/d/0B1wwlFPPPAQZdTZUZENCTy1IaGs/view?usp=sharing


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java8

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java8

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📝Java Interview Questions📝

📑Every day, One Question📑

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1) What is difference between JDK,JRE and JVM?

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Ans:

JVM

JVM is an acronym for Java Virtual Machine, it is an abstract machine which provides the runtime environment in which java bytecode can be executed. It is a specification.

JVMs are available for many hardware and software platforms (so JVM is platform dependent).

JRE

JRE stands for Java Runtime Environment. It is the implementation of JVM.

JDK

JDK is an acronym for Java Development Kit. It physically exists. It contains JRE + development tools.

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2) How many types of memory areas are allocated by JVM?

Many types:

Class(Method) Area
Heap
Stack
Program Counter Register
Native Method Stack

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Internal Architecture of JVM

Let's understand the internal architecture of JVM. It contains classloader, memory area, execution engine etc.
Jvm Internal

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