Java is a general purpose computer
programming language which is similar to C++ that is concurrent, class based, and
object oriented and run on all platforms which support Java without the need
for recompilation. The Java technology
is an
Programming Language – Java can create all kinds of
applications that you would create using any conventional programming language.
Development Environment – Java technology provides large suite
of tools such as compiler, interpreter, documentation generator, class file
packaging tool.
Application Environment – Java Technology applications are
typically general purpose programs that run on any machine where the JRE is
installed.
Deployment Environment – The JRE supplied by the Java SDK
contains complete set of class files includes basic classes, GUI components and
so on .The another component is on your web browser.
Java Virtual Machine – It is an imaginary machine
implemented by emulating software on a real machine which provides hardware specifications.
Garbage Collection – It is responsible for freeing any
memory that can be freed which happens automatically at the time of java
program.
Code Security – It is attained in Java
through the implementation of its JRE which runs code compiled for a JVM and
performs class loading, code verification and code execution.
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