Java-J2EE

There is something missing in internet Without web application. Everyone you can find web application,everywhere on the internet. Many of these web applications are used to process online from like as online application from, News paper,tally Voting polls,book movies ticket ,take order with on online store,Book flight/train/bus for the next business trip ,or display the user's login name,collect information school/collages application for next studies.Which java technologies do you needed to create a web application.

Web application means a nature distributed application,meaning that they are programs that run on more then one computers/mobiles and communicate through a distributes network or server .Specifically web application are accessed with web browser. 
Web application or web app is a client–server computer program in which the client (including the user interface and client-side logic) runs in a web browser.Web applications are used for web mail, online retail sales,wikis, discussion forum  (Facebook,twitter), weblogs, online banking/financial services, and more. One web application can be accessed and used.

A java web application is a collection of dynamic resource (like as Servlets, JavaServer Pages) and Javaclass and jars

and static resource (HTML pages/Css Page/JavaScript/Pictures)

Presentation layer provides dynamic interfaces work with the Business layer.

Business layer is enterprise beans and web services encapsulate distributable business logic for the applications which are reusable.In data layer Application  data has Stored / persisted preferably in a relational database like as Oracle,MySQL 

1. Java :

      1.Core Java (Evolution of Java)
      2.Core Java (Fundamentals)
      3.Core Java (Advanced Topics)
      4.Java 8 Installation In Linux

      5.Java 8 New Feature

2. J2ee :

1. Java Servlets
2. JavaServer Pages (JSP)
3. Java Message Service (JMS)
4. Java Naming and Directory Interface (JNDI)
5. Java Database Connectivity (JDBC)
6. Java Mail
7. Enterprise JavaBeans (EJB)
8. Java Transaction Service (JTS)
9. Java Transaction API (JTA)
10. J2EE Connector Architecture (J2EE-CA,JCA)