Everything You Need To Know About Java
                     Everything You 
Need To Know 
About 
JJAAVA:  VWRIATE  O NCE ,  RUN ANYWHERE!
Java is a general-purpose, class-based, object-
oriented programming language designed for 
having lesser implementation dependencies. It is 
a computing platform for application 
development. Java is fast, secure, and reliable, 
therefore. It is widely used for developing Java 
applications in laptops, data centers, game 
consoles, scientific supercomputers, cell phones, 
etc.
TYPES OF JAVA APPLICATIONS
HISTORY OF JAVA
VERSIONS OF JAVA
FEATURES OF JAVA TABLE OF 
COMPONENTS OF JAVA CONTENT
PROGRAMMING LANGUAGE
DIFFRENT TYPES OF JAVA S
PLATFORM
         The top 10 applications of Java.
TYPES OF ⚬ Mobile Applications⚬ Desktop GUI Applications
⚬ Web-based Applications
JAVA ⚬ Enterprise Applications
⚬ Scientific Applications
APPLICATION ⚬ Gaming Applications⚬ Big Data technologies
S ⚬ Business Applications⚬ Distributed Applications
⚬ Cloud-based Applications
HISTORY OF JAVA
James Gosling initiated Java language 
project in June 1991 for use in one of On 13 November, 2006, Sun 
his many set-top box projects. The released much of Java as free and 
language, initially called ‘Oak’ after an open source software under the 
oak tree that stood outside Gosling's terms of the GNU General Public 
office, also went by the name ‘Green’ License (GPL).
and ended up later being renamed as On 8 May, 2007, Sun finished the 
Java, from a list of random words. process, making all of Java's core 
Sun released the first public code free and open-source, aside 
implementation as Java 1.0 in 1995. It from a small portion of code to 
promised Write Once, Run Anywhere which Sun did not hold the 
(WORA), providing no-cost run-times on copyright.
popular platforms.
Versions 1.0 and 1.1 are named as JDK (Java Development 
Kit).
From versions 1.2 to 1.4, the platform is named as J2SE
 (Java 2 Standard Edition).
VERSION From versions 1.5, Sun introduces internal and external versions. Internal version is continuous from previous ones 
(1.5 after 1.4), but the external version has a big jump 
S OF (5.0 for 1.5). This could make confusion for someone, so keep in mind that version 1.5 and version 5.0 are just two 
different version names for only one thing.
JAVA From Java 6, the version name is Java SE X.Major versions were released after every 2 years, however 
the Java SE 7 took 5 years to be available after its 
predecessor Java SE 6, and 3 years for Java SE 8 to be 
available to public afterward.
Since Java SE 10,  new versions will be released very six 
months.
THANKS TO ITS EXCELLENT FEATURES, 
JAVA HAS BECOME A POPULAR AND 
USEFUL PROGRAMMING LANGUAGE. 
SUN CHARACTERIZED IT AS BEING:
• Compiled and Interpreted
• Platform Independent and Portable
FEATURE • Object-Oriented• Robust and Secure
S OF JAVA • Distributed• Familiar, Simple and Small
• Multi-threaded and Interactive
• High Performance
• Dynamic and Extensible

COMPONENTS THERE ARE THREE MAIN COMPONENTS OF JAVA LANGUAGE: JVM, JRE, AND 
JDK.
 OF JAVA 
Java Virtual Machine, Java Runtime 
PROGRAMMIN Environment and Java Development 
Kit respectively.
G LANGUAGE
THERE ARE FOUR PLATFORMS OF 
THE       JAVA PROGRAMMING 
LANGUAGE: Different 
Types of 
• Java Platform, Standard Edition 
(Java SE) JAVA 
• Java Platform, Enterprise Platform
Edition (Java EE)
• Java Platform, Micro Edition 
(Java ME)
• Java FX
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