Determine whether year is leap year or not

I have to determine whether a year is a leap year or not when the user
inputs the year.

Example below:

Enter year: 2016
2016 is a leap year

Enter year: 2013
2013 is not a leap year

I have no idea where to start as my professor did not explain it very
well in his notes. Can somebody please help me.

Ryan, you go to wikipedia and find out how to calculate whether or not a
year is a leap year. Then you implement it in ruby. That’s how you’re
going to learn the most from the task.

Hint: You’ll probably need a class with a method: is_leap_year? After
that’s working you can think about printing the message to the terminal.

Joe Gain wrote in post #1185078:

Hint: You’ll probably need a class with a method: is_leap_year? After
that’s working you can think about printing the message to the terminal.

I would not create a class just for this. What instance variables should
the class have? Instead I would do one of the following:

(1) Put the method is_leap_year? into Fixnum

 class Fixnum
    def is_leap_year?
      ...
    end
 end

(2) Likewise, put the method into Time and name it then more
appropriately
is_in_leap_year?

(3) Create a module for this - for instance DateUtilities - and make it
a module method, like this:

module DateUtilities

  extend self

  def is_leap_year?(year)
    ...
  end

end