The document provides an overview of Java, discussing its definition, security models, performance, and real-world applications. It highlights Java's advantages, such as portability and scalability, and the significance of its security frameworks, including the sandbox model. Additionally, it includes statistics on Java usage and developer population, as well as references to various indices measuring its popularity.

1. JAVA AT A
GLANCE

2. Overview
 What is Java ?
 Why Java ?
 Security Models In Java.
 Performance of Java.
 Java in Real World.
 TIOBE & PYPL Index.
 How Many Java Developers ?
 IEEE Spectrum Ranking.
 Programming Language Trend – World Wide
 About MAAN.

3. What is JAVA ?

4. “Java From 10,000 Feet's
 According to the world, Java is...
 According to Sun, Java is...
 On closer inspection, Java is

5. “According to the World, java is...
 Secured Web pages
 The cross-platform language
 The rest-of-the-worlds answer to Bill Gates
 The C++ replacement we need
 A bunch of hype

6. According to Sun, JAVA IS...
 Simple and Powerful
 Object Oriented
 Portable
 Architecture Neutral
 Distributed
 Multi-threaded
 Robust, Secure/Safe
 High Performance

7. On Closer Inspection, JAVA IS...
 Simple
 Pure
 Portable
 Surprisingly effective

8. Why Java ?

9. “Java
Write Once, Run Anywhere

10. “Security Models In JAVA
 Need For JAVA Security.
 The Sandbox Model or Java 1.0.
 Java 2 Platform Security Model.

11. Need For Security IN JAVA
 Code Mobility Can Be Useful.
* Improve Functionality of Services.
 Downloaded Executable Contents is Dangerous
* The Source May Be Unknown Hence Trusted.
* Downloaded Code May modify or destroy data in our System.
* They may be install other hostile code on our system.
* Hostile code may use the resources of our system.

12. Sandbox model
 The original security model provided by the
Java platform.
 It existed in order to provide a very
restricted environment in which to
 run untrusted code obtained from the open
network.

13. Java 2 Platform Security Model

14. “ Fine Grained Access Control :-
* Every code access to the resources based on what is defined in a policy file.
 Easily Configurable Security Policy :-
* It is desirable to allow application builders and users to configure security
policies without having to program.
 Easily Extensible Access Control Structure :-
* The new architecture allows typed permissions and automatic handling of
all permissions of the correct type.
 Extension of Security Checks to all Java programs :-
* There is no longer a built-in concept that all local code is trusted.

15. “How Sandboxing work ?
 Compile the Applet .
 Create JAR file for the Applet.
 Generate a pair of public/private keys.
 Sign the applet jar with private key.
 Export the certificate for public key.
 Import the certificate as a trusted certificate.
 Create the policy file.
 Load and run the Applet.

16. Performance of java

17. Twitter migrates core infrastructure to the JVM
and supports more than 400 million Tweets a day.

18. Java's innate scalability has played a key role in enabling Netflix to
expand its service to more than 57 million members in 50
countries. Collectively, these viewers enjoy more than 1 billion
hours of shows and movies per month.

19. JAVA IN REAL WORLD
 1.1 billion desktops run Java.
 930 million Java Runtime Environment downloads each
year.
 3 billion mobile phones run Java.
 10 times more Java phones ship every year than Apple
and Android combined.
 100% of all Blu-ray players run on Java.
 1.4 billion Java Cards are manufactured each year.
 Java powers set-top boxes, printers, Web cams, games,
car navigation systems, lottery terminals, medical
devices, parking payment stations, and more.

20. “Tiobe & pypl
 TIOBE Index :
TIOBE ratings are calculated by counting hits of the most popular
search engines.
 PYPL Index :
The PYPLU Popularity of Programming Language Index is created
by analyzing how often language tutorials are searched on Google.

21. TIOBE Index for 2018

22. Very Long Term History

23. PYPL Index for 2018

24. “How many Java developers ?
Based on a survey made using various portals, different sources for
estimation – popularity contests, job market analysis and download
numbers of popular Java development infrastructure products there are
approximately 8,311,000 Java developers in the World.

25. IEEE Spectrum ranking FOR 2018

26. Programming Language
Trend - WORLD WIDE

27. About MAAN
MAAN Software Inc. is a leading software firm
generating its services since a long time in the
domain of digital solution. It has successfully
managed to aid hundreds of entrepreneurs and
small businessmen to launch their endeavors
and turn them into successful digital units.

28. www.Maansoftwares.com