Introduction of Java
What is Java?
Java is a programming language
and a platform.
Platform Any
hardware or software environment in which a program runs, known as a platform.
Since Java has its own Runtime Environment (JRE) and API, it is called platform
.
Where
it is used?
According to Sun, 3 billion devices run java. There are many
devices where java is currently used. Some of them are as follows:
- Desktop Applications such as acrobat reader, media
player, antivirus etc.
- Web Applications etc.
- Enterprise Applications such as banking applications.
- Mobile
- Embedded System
- Smart Card
- Robotics
- Games etc.
Types
of Java Applications
There are mainly 4 type of
applications that can be created using java:
1)
Standalone Application
It is also known as desktop application
or window-based application. An application that we need to install on every
machine such as media player, antivirus etc. java training in jaipur.AWT and
Swing are used in java for creating standalone applications.
2)
Web Application
An application that runs on the
server side and creates dynamic page, is called web application. Currently,
servlet, jsp, struts, jsf etc. technologies are used for creating web
applications in java.
3)
Enterprise Application
An application that is distributed
in nature, such as banking applications etc. It has the advantage of high level
security, load balancing and clustering. In java, EJB is used for creating
enterprise applications.
4)
Mobile Application
An application that is created for
mobile devices. Currently Android and Java ME are used for creating mobile
applications.
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