Java is a class-based, object-oriented programming language that is platform independent and allows developers to create both command-line and graphical user interface applications, games, animations, and internet-based applications. It was developed by James Gosling at Sun Microsystems in 1995 and is widely used for both computer and mobile device programs. Some key features of Java include being object-oriented, simple, platform independent, multithreaded, secure, flexible, and portable.

1. What is Java ?
Java is a class based high level object oriented
programming language. Which allow to
developed both CUI & GUI application games
animation and internet based application etc.
It is developed by James Gosling at Sun
microsystem in 1995. it is platform independent
and multi-purpose programming language

2. What is Java ?
It is used to developed a program for both
computer and mobile devices. Such as smart
phone tab etc.

3. Remember Some important point
First application developed by java was web
browser name Hot java
The first version of java (java 1.0) is released in
1991
The first name of java is Oak next goes to Green
and finally become JAVA
Java is the name of Coffee Seed

4. Features or characteristic of java ?
Features
of Java
Object
Oriented
Simple
Platform
Independent
Multithreaded
Secure
Flexible
Portable

5. Object Oriented
Java support object oriented programming
structure so it is called object oriented
programming language. which means it allow to
develop a complex program by several small
object
Features or characteristic of java ?

6. Simple
Java is very simple and easy to learn
Features or characteristic of java ?

7. Platform Independent
Java is called platform independent a because
java program can be run on different kind of
platform. Which means the program developed
on one computer will execute or run any other
hardware or any operating system
Ex. Windows os, Linux o/s
Features or characteristic of java ?

8. Multithreading
Java is a multithreading programming language
because in Java we can perform more than one
task simultaneously. So it is called
multithreading
Features or characteristic of java ?

9. Secure
Java is more secure and safe language as compare
to other programming language. It means the
source code of java is not accessible to end user of
application development in java
Since in java language byte code is executed hence
the developer required to share only byte code
Features or characteristic of java ?

10. Flexible
An application developed in java can be
modified and change as per user requirements
so it is called flexible programming language
Features or characteristic of java ?

11. Portable
A java program written in one system can be run
in any other system. In simple way we can say
that a java program can be transferred from one
system to another system.
Features or characteristic of java ?