Crowdly

exception is thrown.

line

‘The nil color’.

line

‘The color’.

Shape is the class, then

means:

create

a new Shape variable and make x reference that variable.

create

a new Shape method and make x reference that method.

create

a new Shape object and make x reference that object.

create

a new Shape class and make x reference that class.

This

code creates a Shape class.

Which

of the following code snippet is a correct way for creating class method?

This

code creates a Shape class.

Which

of the following code snippet is a correct way for creating instance method?

What

is a reference to object?

reference is a special type for declare classes in Ruby.

reference is a variable which hold address that indicates where an object is stored.

reference is an instance of a class.

reference is a variable which point to initialize method defined in a class.

What

is an object?

object can be thought of as a factory that makes classes.

object is an instance of a class.

all

of the above is true.

object is a special type for grouping similar variables.

What

is a class?

all of the above is true.

a class is a special type for

grouping similar variables.

a class

can be thought of as a factory that makes objects.

a class

is an instance of an object

What

is “

Ruby style guide”?

It’s a

set of rules how to use OOP in ruby

It’s a

set of advises how to write Ruby documentation

It’s a

set of advises concerning Ruby coding style

What

is true concerning rubocop

It’s

not a linter

formats code

It checks

if code follows “

Ruby style guide”

What

is true concerning ruby-lint

It’s

linter

checks unused methods

formats code

checks if code follows “

Ruby style guide”

checks unused variables