JAVA

Java is a programming language and is second mostly used language worldwide. Java is used for programming due to the following features provided by this language. Java Language is presently under Oracle company.

Features of JAVA :

• Simple language

             Java is considered as a simple language because no pointers are used in its programming. Use of                  pointer on C++ is considered as the most difficult part in C++

• Highly secure

              Java is said to be a secure language as for hacking purposes hackers use concept of pointers . They  get the address and the value t can be easily accessed with the help of pointers if they know the address  once. No pointers are used in java , hence programs , application in java and websites made in java  cannot be hacked easily.

• Platform independent  

             Program made in one Operating system can  be used on any Operating system. A program or application made in java can easily run on all operating systems.

    

        What makes JAVA platform independent?

         Compilation and generation of output of JAVA languauge worksinthe following way :

               .Class is a byte code and is comman for all Operating Systems. This feature makes the language                     platform indepedent.

• Open Source

         All the files and directories and coding can be accessed from the jdk folder inside the java  folder.

        C:\Program files\Java\jdk

• Robust

          Exception handling provided in java makes the language error free. This feature is called robust.

• Java - A 3 Tier language

           Any software is said to be a 3-tier language if it offers the following three layers :
               1. Presentation Layer
               2. Business Layer
               3. Data Layer              

   
     Presentation layer consists if the user interface (UI) . Business layer comprises of logic designing. And Data Layer is meant for Database management.