IT Nursery
Here is some code: class Person def initialize(age) @age = age end def age @age end def age_difference_with(other_person) (self.age - other_person.age).abs end protected :age end What I want to...
I read https://stackoverflow.com/questions/826734/when-do-ruby-instance-variables-get-set but I’m of two minds when to use class instance variables. Class variables are shared by all objects of a class, Instance variables belong to one...
Is there any advantage for either approach? Example 1: class A { B b = new B(); } Example 2: class A { B b; A() { b =...
Suppose, I have a webserver which holds numerous servlets. For information passing among those servlets I am setting session and instance variables. Now, if 2 or more users send...
Instance variable is the variable declared inside a class, but outside a method: something like: class IronMan { /** These are all instance variables **/ public String realName; public...