The developers
preferred java over traditional programming languages like C and C++.Java is
preferred due to its unique feature platform independent, robustness and more
secure.
·
Simple:
Java inherits most of the syntax of C and many of the OOPs features of C++. In
addition to this is has its own add in features which are easy for professional
programmers to learn.
·
Object
Oriented: Java uses OOPs concepts for faster programming. It has most of
the packages and interfaces built-in which are easily reused and extended. The
class and object structure provides data encapsulation, abstraction,
inheritance and polymorphism.
·
Robust: Java is robust because of two reasons memory
management and exception handling. In traditional programming C,C++ dynamic
memory management is very difficult as memory allocation and de-allocation must
be done by programmer but java does this dynamic memory allocation and
de-allocation without any extra efforts. Exceptional conditions may arise in
traditional programming which may leads to abnormal termination of programs but
java provides exception handling which helps to handle and eliminate these run
time errors.
·
Secure:
All java programs run over JVM platform and not on Operating system. So any OS
related updates or modification does not affect execution of java program. Java
also provides packages and access modifiers which in turn provides security.
Java applets are executed inside sandbox which creates an environment which
provides restricted access to OS resources and allows user to run untrusted
code from unknown source safely. Java uses byte code verifier module which
checks java code automatically before executing it. Java provides run time
array boundary check which is not provided in traditional programming. In
traditional programming memory references can be manipulated but in java you
cannot manipulate references which interns provides secure memory access.
·
Platform
Independent: Traditional languages C, C++ were designed to compile for
specific platform (processors, OS). In java executable code runs over JVM
platform which is independent of OS. So once we have byte code (.class file) we
can execute it on any OS. So java code needs to be compile only once and we can
execute it any number of times across different platforms (processors, OS). So
it is “write once, run anywhere, anytime”.
· Multithreaded:
Java provides multithreaded programming which allows doing many things
simultaneously. Each thread performs separate task. For example using text
editor with spell check feature enabled which allows editing and spelling check
simultaneously.
