48
will enable the developer to develop the application from the PC instead of directly on
mobile
phone.
The
development
kit
acts
as
an
emulator.
We
can
design,
code,
and
see
how
the
application
looks
like
in
this kit.
The
example of development kit
is the
J2ME
Wireless Toolkit. The latest version is 2.2. However, there is also another development kit
such as Nokia Development Kit , which
is specifically
used
for developing application
for
Nokia device. Nevertheless, before that, we need the
Java Development Kit (JDK),
version 1.4.2 or greater in order to use those development kits.
You need this Toolkit
because
it
contains
tools
that
are
important
in
generating
MIDlets.
This
Toolkit
provides
the
development
environment
for
the
MIDP
2.0
and
CLDC 1.1 (and for MIDP 1.0 and CLDC 1.0, since these parameters are backwards
compatible), and it provides the optional packages required
for the optional
libraries,
like
3D and Mobile Media applications. Lastly, it provides the ability to sign your MIDlets so
that they can be authenticated before installation on a remote mobile device.
“A
MIDlet
is
a
Java
program
for
embedded
devices,
more
specifically
the
J2ME
virtual machine.” [19]
MIDlet is the Java application which will run in mobile devices such as cell phones.
MIDlet is the application that the developer builds up in J2ME platform. MIDlet contains
several classes, but the main class needs to extend javax.microedition.midlet.MIDlet. The
MIDlet
compiled
and
packed
into
a
Java
Archive
(JAR)
file
and
pre-verified before
deployed to the device.
Each
different
device
has
different
capacity
for
MIDlet
JAR
file
size.
To acquire
information of the size allowed for JAR size, the developer has to read the technical
documentation of the target device.
 |