44
Java
is developed by James Gosling and colleagues at Sun
Microsystems
in early
1990. Java
language has several changes since the
first time
it appears. Java
has released
in several version since the Java Development Kit (JDK) 1.0 until the Java 2 Series.
According
to
[19],
there
are
five
goals
in
the
creation
of
Java
programming
language:
1. It should use the object-oriented programming methodology.
2. It should allow the same program to be executed on multiple operating systems.
3. It should contain built- in support for using computer
networks.
4. It should be designed to execute code from remote sources securely.
5. It should be easy to use and borrow the good parts of older object-oriented
languages like C++.
To
run
the
Java
application,
in
any
platform,
we
need
the
Java
Runtime
Environment
(JRE). Component of JRE are libraries (compiled byte codes to support
application
development),
Java
Virtual
Machine
(the
things
that
execute
byte
code
of
Java
library and third party application), Plug- ins (to enable applet to run
in web
browser), Java Web Start (to allow the application to be distributed over the internet, and
also license and documentation.
There are three platforms developed by Sun, each of them
has
different Application
Programming
Interface
(API). The platforms are: Java 2 Enterprise Edition (for large
distribute enterprise and internet environment), Java 2 Standard Edition (for workstation
environment), Java 2 Micro Edition (for
limited resource environment).
2.3.8 Java 2 Micro Edition
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