java software development kit | software development kit

by Dwivedi Cyber Dairy on December 07, 2019 in JAVA

Java Software’s

Java=JDK+JRE

1. JDK(Java development kit)

2. JRE(Java runtime environment)

JDK=(compile+JRE+JVM)

JRE=JVM+Java library(class library)

JVM

JVM(Java Virtual Machine) is an abstract machine. It is called a virtual machine because it doesn’t physically exits. It is a specification that provides a runtime environment in which java bytecode can be executed. It can also run those program which are written in other language and compiled to Java bytecode.

JVMs are available fr many hardware and software platforms. JVM, JRE, and JDK are platform dependent because the configuration of each OS is different form other. However, Java is platform independent.

There JVM performs the following main tasks:

o   Loads code

o   Verifies code

o   Execute code

o   Provide runtime and environment

java software devlopment kit

JRE

JRE is an acronym for Java Runtime Environment. It is also written as Java RTE. The Java Runtime Environment is a set of software tools which are used for developing Java applications. It is used to provide the runtime environment. It is the implementation of JVM. It physically exists. It contain a set of libraries + other files that JVM uses at runtime.
The implementation of JVM is also actively released by other companies beside Sun Micro Systems.

java software devlopment

JDK

JDK is an acronym for Java Development Kit . The Java Development Kit(JDK) is a software development environment which is used to develop Java applications and applets. It physically exists. It contains JRE + development tools.

JDK is an implementation of any one of the below given Platforms by Oracle Corporation:

o Standard Edition Java Platform

o Enterprise Edition Java Platform

o Micro Edition Java Platform

The JDK contain a private Java Virtual Machine (JVM) and a few other resource such as an interpreter/loader(java), a compiler (javac), an archiver (jar), a documentation generator (javadoc), etc, to complete the development of a Java Application.