INTRODUCTION TO JAVA FOR ALL JAVA BEGINNERS....

J    A   V    A

-the beginning

                                 

Introduction :

• JAVA was developed by Sun Micro systems Inc in 1991, later acquired by Oracle Corporation.
• It was conceived by James Gosling and Patrick Naughton. It is a simple programming language.
•  Writing, compiling and debugging a program is easy in java.  It helps to create modular programs and reusable code.

Main Features of JAVA : JAVA is a platform independent language.

•  To understand the meaning of platform independent, we must need to understand the meaning of platform first.
• A platform is a pre-existing environment in which a program runs, obeying its constraints, and making use of its facilities.
• During compilation, the compiler converts java program to its byte code. This byte code can run on any platform such as Windows, Linux, Mac/OS etc. Which means a program that is compiled on windows can run on Linux and vice-versa.
• This is why java is known as platform independent language.

JAVA is an Object Oriented Language :

      Object oriented programming is a way of organizing programs as collection of objects, each of which represents an instance of a class.

• 4 main concepts of Object Oriented programming are:

1. Abstraction
2. Encapsulation
3. Inheritance
4. Polymorphism

• Java is considered as one of simple language because it does not have complex features like Operator overloading, Multiple inheritance, pointers and Explicit memory allocation.

Robust Language :

Two main problems that cause program failures are memory management mistakes and mishandled run time errors. Java handles both of them efficiently.

1) Memory management mistakes can be overcome by garbage collection.  Garbage collection is automatic de-allocation of objects which are no longer needed.

2) Mishandled run time errors are resolved by Exception Handling procedures.

Secure :

It provides a virtual firewall between the application and the computer.  Java codes are confined within Java Run time Environment (JRE) thus it does not grant unauthorized access on the system resources.

JAVA is Distributed :

• Using java programming language we can create distributed applications. 
• R M I(Remote Method Invocation) and E J B(Enterprise Java Beans) are used for creating distributed applications in java.
•  In simple words: The java programs can be distributed on more than one systems that are connected to each other using internet connection.
•  Objects on one J V M (java virtual machine) can execute procedures on a remote 

J V M.

Multi-Threading :

Java supports multithreading. It enables a program to perform several tasks simultaneously.

Portable : 

JVM

• As discussed above, java code that is written on one machine can run on another machine. 
• The platform independent byte code can be carried to any platform for execution that makes java code portable.

For more tutorials of JAVA ,Please visit the following websites/links.

         www.tutorialspoint.com/java

         javabeginnerstutorial.com/core-java

         courses.caveofprogramming.com/courses/java-for-complete-beginners

Thank you for reading my Blog.

MURALI KRISHNA ATHIPATLA,

  

Email : amkrishna1992@gmail.com

Mob : 8520973796

How to Develop an Android Application With out any

 Programming Background.

Hi Friends......Are you ready to become a Programmer. Don't worry about your professional background.

Get ready to develop a your application on your own.

There are many websites for making Android Applications like APPSGEYSER etc...

1. Initially open the given link .http://www.appsgeyser.com/  
   

     2. Then click on  "CREATE". 

     

     3. Before creating an Application you have Login or Signup into Appsgeyser by using your Email 

          and Password.

     

     4. After logging in into your account ,you have to click on "CREATE".

     5.  Select which type of application you want to buildup (like Messenger,Browser,Website,Etc...).

     6.  Click any one of your selected ICON.

  

     7. After selecting an certain Icon,the "APP SETTINGS PAGE" will open.

  

    8. Suppose if u select BROWSER, you have to Manipulate (Style, Links,Reading Mode settings)

       

         as you like.

    9. Finally SUBMIT your application and PUBLISH it ,if your are interested.

    10. Open your application on your Android Mobile.

           For clear explanation about this blog...please watch my Video...

                                  Thank you for watching my Blog.

MURALI KRISHNA ATHIPATLA

Android Developer,

E-mail : amkrishna1992@gmail.com

Mob : 8520973796