Problem Statement
Each object in Ruby may have methods associated with it. To demonstrate this, we want you to print whether a number is even or odd. A number has an even? method associated with it, which returns true or false based on the parity of the number.
Assuming a variable number is already defined, check whether a given number is even or not.
Hint
Type in the code-editor
return number.even?
or
number.even?
Solution
# add your code here
return number.even?
Problem Statement
Everything is an object in Ruby. For instance, if you type
print self
in the code-editor, Ruby treats self as the object in which it is currently referred to.
Solution
# Enter your code here. Read input from STDIN. Print output to STDOUT
print self
Problem Statement
Let’s get started with Ruby!
Go ahead and type the following code in the code-editor:
print "Hello HackerRank!!"
Solution
# Enter your code here. Read input from STDIN. Print output to STDOUT
print "Hello HackerRank!!"