Ruby : A view from JAVA Programmer

• Ruby use requires in place of import (they request not order )

• Brackets are not mandatory in class and methods

• All member variables are private

• JAVA DOC turns to RDOC

• XML changed to YAML

• Null modified to Nil (So no null pointer exception )

• Every thing is object, no primitive type

• } bracket don’t end class or method. end key word do it. (time consuming)

• Flavor of interface found in Mixin

• No method overloading (Be happy they gives at least they have overriding)

• Syntax for Instance creation: a = A.new(); (Class and new exchanged there place. Oh! no Class before the instance A)

• No compilation (:))

• == and equals are just opposite (confusing :-S)

• Coding convention for method/variable is not like doThis, its do_this

• # used for for commented code (not //)

• For global variable @variable not this.variable

References:

http://www.ruby-lang.org/

By: Md. Shahjalal