Java Lecture
According to Sun, 3 billion devices run Java. There are many devices where Java is currently used.

Types of Java Applications

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. 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.

Examples

  1. Desktop Softwares such as calculators, multimedia player, antivirus etc.
  2. Web Applications such as e-commerce solutions and others.
  3. Enterprise Applications such as online banking.
  4. Mobile Android or others
  5. Embedded System
  6. Smart Card
  7. Robotics
  8. Games etc.

Java Platforms / Editions

1) Java SE (Java Standard Edition) It is a Java programming platform. It includes Java programming APIs such as java.lang, java.io, java.net, java.util, java.sql, java.math etc. It includes core topics like OOPs, String, Regex, Exception, Inner classes, Multithreading, I/O Stream, Networking, AWT, Swing, Reflection, Collection etc.

2) Java EE (Java Enterprise Edition) It is an enterprise platform which is mainly used to develop web and enterprise applications. It is built on the top of Java SE platform. It includes topics like Servlet, JSP, Web Services, EJB, JPA etc.

3) Java ME (Java Micro Edition) It is a micro platform which is mainly used to develop mobile applications.

4) JavaFx It is used to develop rich internet applications. It uses light-weight UI API.

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