Java – 

Java is a programming language originally developed by Sun Microsystems and released in 1995 as a core component of Sun Microsystems' Java platform. The language derives much of its syntax from C and C++ but has a simpler object model and fewer low-level facilities. Java applications are typically compiled to bytecode that can run on any Java virtual machine (JVM) regardless of computer architecture.
Java is one of the leading platforms for developing web applications. Servlets and JSP allow you to develop robust web applications that will run across multiple web servers and operating systems. 
What is Java?
Background/History of Java
The Internet and Java's Place in It
Applications and Applets
Java Development and Execution Environments
Object Oriented Programming Concepts
Abstraction and Encapsulation
Inheritance, Subclasses and Superclasses
Polymorphism and Overloading
abstract and final Classes
Packages and Interfaces
Java, Classes and Objects
Class Definition and Module Organization
Objects vs. Built-In Types
Class Methods and Instance Methods
Primitive vs. User-Defined Data Types
Objects and Wrapper Classes
Expressions and Operators
Assignment Statement
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