The document outlines key features and components of the Java EE (J2EE) platform, emphasizing its ability to develop enterprise-level web applications through dependency injection and various component types. It describes Java collections, applets, servlets, and web services, highlighting their functionalities and advantages. Additionally, it mentions Greens Technology as a prominent institute in Chennai offering specialized Java training.

1. JAVA

2. Introduction
• The Java EE stage utilizes an improved programming model.
XML arrangement descriptors are discretionary. Rather, an
engineer can just enter the data as an explanation
straightforwardly into a Java source document, and the Java
EE server will design the part at organization and runtime.
• In the J2EE stage, reliance infusion can be connected to all
assets a segment needs, successfully concealing the creation
and query of assets from application code. Reliance infusion
can be utilized as a part of EJB compartments, web holders,
and application customers. Reliance infusion permits the Java
EE compartment to consequently embed references to other
required segments or assets, utilizing comments.

3. What is J2EE?
• J2EE is a Java2,Enterprise Edition. It is stage free, Java driven
condition from Sun for creating, constructing and conveying
Web-based endeavor applications on the web.
• The J2EE stage comprises of an arrangement of
administrations, APIs and conventions that give the usefulness
to creating multi tiered, Web-based applications.
• Java Training in Chennai exposes J2EE Learning.
• Center java is the essential java programming and is called as
the J2SE(Java Standard Edition).
• This is fundamentally used to create independent programs
based on this sun had discharged the J2EE(Java enterprise
edition.)

4. J2EE Components
J2EE applications are comprised of parts. A J2EE part is an
independent useful programming unit that is amassed into a J2EE
application with its related classes and documents and that speaks
with different parts. The J2EE particular characterizes the
accompanying J2EE segments:
• Application customers and applets are parts that keep running on
the customer.
• Java Servlet and Java Server Pages(JSP) innovation segments are
Web segments that keep running on the server.
• Enterprise Java Beans(EJB) segments (endeavor beans) are
business segments that keep running on the server.

5. Collections in Java
• Collection represents a single unit of objects
• Accumulations in java is a structure that gives an engineering
to store and control the gathering of articles.
• Every one of the activities that you perform on an
information, for example looking, arranging, addition, control,
erasure and so forth can be performed by Java Collections.
• It basically implies a solitary unit of articles. In this system
gives numerous interfaces and classes.

6. Java Applet
Applet is an extraordinary sort of program that is installed in the
page to produce the dynamic substance. It keeps running inside
the program and works at customer side.
Favorable position of Applet
There are numerous focal points of applet. They are as per the
following:
• It works at customer side so less reaction time.
• Secured
• It can be executed by programs running under numerous
platforms, including Linux, Windows, Mac Os and so forth.
Downside of Applet
• Module is required at customer program to execute applet.

7. Array List
Java Array List class utilizes a dynamic exhibit for putting away
the components. It acquires Abstract List class and executes List
interface.
The vital focuses about Java Array List class are:
• Java Array List class can contain copy components.
• Java Array List class keeps up inclusion arrange.
• Java Array List class is non synchronized.
• Java Array List permits irregular access since cluster works at
the file premise.
• In Java Array List class, control is moderate in light of the fact
that a ton of moving should be happened if any component is
expelled from the cluster list.

8. Linked list
Java LinkedList class utilizes doubly connected rundown to store
the components. It gives a connected rundown information
structure. It acquires the Abstract List class and executes List and
Deque interfaces.
• Java LinkedList class can contain copy components.
• Java LinkedList class keeps up addition arrange.
• Java LinkedList class is non synchronized.

9. What is servlet?
• A servlet is a Java programming dialect class used to broaden
the capacities of servers that host applications got to by means
of a demand reaction programming display.
• Despite the fact that servlets can react to a demand, they are
usually used to expand the applications facilitated by Web
servers. For such applications, Java Servlet innovation
characterizes HTTP particular servlet classes.
• Using Servlets, you can collect input from users through web
page forms, present records from a database or another source,
and create web pages dynamically.

10. Web Services
• Web administrations are customer and server applications that
impart over the World Wide Web's (WWW) Hyper Text
Transfer Protocol (HTTP).
• As depicted by the World Wide Web Consortium (W3C), web
administrations give a standard methods for inter-operating
between programming applications running on an assortment
of stages and structures.
• These are portrayed by their extraordinary inter-operability
and extensibility, and in addition their machine-processable
depictions, on account of the utilization of XML.
• It can be joined in an inexactly coupled manner to accomplish
complex tasks.

11. JAVA @ Greens Technologys
• Among Various Software Training Institute in Chennai. Greens
Technologys is one and only Software Training institute who offer
best Java Training in Chennai which live examples.
• Greens Technology is recognized for its Java Training in both retail
and corporate market. We have trained above 28,000 students
exclusively on Java in last 7 years.
• All our trainers’ expertises on both development and training which
helps us deliver project based training.

12. For more details visit
http://www.greenstechnologys.com