What Is JVM?
JVM stands for “Java Virtual Machine” and it is platform dependent and heart of java programming
language.
Java Virtual Machine (JVM) provides
run-time environment and also responsible for converting byte code into machine
readable code.
Java Virtual Machine (JVM) performs
following main tasks -
1. Loads
code
2. Verifies
code
3. Executes
code
4. Provides
runtime environment
Two Types of JVMs is - Java HotSpot Client VM and
Java Hotspot Server VM.
What Is JDK?
JDK stands for “Java
Development Kit” and it is used to build and develop the java programs.
Java Development Kit (JDK)
internally contains JRE, compiler, debugger and all set of library and files to
build the java programs.
Without JDK, we can’t build and compile any java
programs.
Java Development Kit (JDK) provides
all the tools, executable files and binaries required to compile, debug and
execute a Java Program. The execution part is handled by JVM to provide machine
independence.
What Is JRE?
JRE stands for “Java
Runtime Environment” and it is responsible for run the Java program.
Java Runtime Environment (JRE) internally
contains JVM and all set of inbuilt packages and library. JRE refers to a
runtime environment in which java bytecode can be executed.
Java Runtime Environment (JRE) doesn’t
contain any development tools like java compiler, debugger etc. You must install
JRE on your machine before execute any java program.
What Is JIT?
JIT stands for “Just In Time compiler “and it used for increased
the speed of execution and JIT also helps the JVM to find the active OS.
Java
was interpreted programming languages, but after JIT
it was called interpreted-complied programming languages.
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Anil Singh is an author, tech blogger, and software programmer. Book writing, tech blogging is something do extra and Anil love doing it. For more detail, kindly refer to this link..
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