Introduction of Java

Basic Overview of Java


What is java ?

Java is an object-oriented programming language.
James Gosling initially developed Java in Sun Microsystems in 1995 (which was later merged with Oracle Corporation)
Java programs are platform independent which means they can be run on any operating system as long as the Java interpreter is available on that system.
Java code that runs on one platform does not need to be recompiled to run on another platform; it's called write once, run anywhere.



Features of Java:

Object-Oriented
Platform independent
Simple
Secure
Multi-threaded
Distributed


Types of java application:


Standalone Application (JAVA SE) - It is also known as the desktop application or window-based application. An application that we need to install on every machine or server such as media player, antivirus, etc. AWT and Swing are used in java for creating standalone applications.
Enterprise Application (JAVA EE)- 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.
Mobile Application (JAVA ME)- Java is used to create application software for mobile devices. Currently, Java ME is used for building applications for small devices, and also Java is a programming language for Google Android application development.