CODEWITHSUNDEEP
ruby
Taras Spivak
Taras Spivak

Reputation: 3

How to compare a sum of expressions with integer in Ruby?

I am learning Ruby and faced with some problem.I tried to compare a sum of expressions with integer and get this return: "comparison of String with 2000 failed". Thanks a lot!

puts "Hello! Please type here your birthday date."

puts "Day"
day = gets.chomp
day.capitalize!

puts "Month"
month = gets.chomp
month.capitalize!

puts "Year"
year = gets.chomp
year.capitalize!

if month + day + year > 2000
    puts "Sum of all the numbers from your birthday date is more than 2000"
else month + day + year < 2000
    puts "Sum of all the numbers from your birthday date is less than 2000"
end

Upvotes: 0

Views: 72

Answers (1)

Sergio Tulentsev
Sergio Tulentsev

Reputation: 230521

day = gets.chomp

Here day is a string. And month + day + year is a string too, only longer. To get integers, call .to_i.

day = gets.to_i # to_i will handle the newline, no need to chomp. 
                # repeat for month and year

(Of course, once you converted strings to integers, you won't be able to capitalize them. It made no sense anyway.)

Upvotes: 1

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