5.04.2016

Difference between java and javascript



Difference between java and javascript

Java and javascript are absolutely different both by concept and design. Javascript has nothing to do with java.




          In early days, Livewire is the nick named of  javascript, then it is named LiveScript when it was created by NetScape.
Facts says that it was called ECMAscript but it was renamed when Netscape passed it to the ECMA for more standard purpose.
          Moreover, javascript  is a client side, interpreted, object  oriented, high level scripting language.
          While java is a client side, complied, object oriented, high level language.

Understanding terminology
Client side:-Program is passed to the computer and computer uses browser to run them.
Server side:- Program run on the server and only result is passes to computer, which is also known when browser is on. For example php, jsp, asp, perl etc.
Interpreted:-The program source code is passed then all programing  language is visible. It is then converted into machine code. Java is dual half complied i.e. complied to the ‘byte code’, then executed in the virtual machine which convert it into almost complied code, inorder to execute in computer’s processor.

Scripting:- Scripting language are used for performing repetitive tasks. They donot handle complex program such as thread and memory management. They also donot create their own user interfaces instead rely on the program to create an interface for them. For example javascript.



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