Class: AddingMultiples::CLI

Inherits:
Object
  • Object
show all
Defined in:
lib/adding_multiples/CLI.rb

Instance Method Summary collapse

Constructor Details

#initialize ⇒ CLI

greeting and directions for the user



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# File 'lib/adding_multiples/CLI.rb', line 7

def initialize
    puts
    puts "Hello! Thank you for taking the time to try this out."
    puts "This tool will add the multiples (up to 1,000) of any positive integers you choose." 
    puts "In the prompt below, please enter a positive integer to get started."
end

Instance Method Details

#calculate_least_common_multiple ⇒ Object

calculate least common multiple



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# File 'lib/adding_multiples/CLI.rb', line 95

def calculate_least_common_multiple
    integer_0 = @integer[0].to_i
    integer_1 = @integer[1].to_i
    @least_common_multiple = integer_0 * integer_1

end

#calculate_sum ⇒ Object

add multiples to sum



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# File 'lib/adding_multiples/CLI.rb', line 76

def calculate_sum
    @sum += @multiple
end

#call ⇒ Object

the order in which methods are called



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# File 'lib/adding_multiples/CLI.rb', line 15

def call
    get_input
end

#get_another_integer ⇒ Object

ask user for another integer



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# File 'lib/adding_multiples/CLI.rb', line 41

def get_another_integer
    input = ""
    puts "\nPlease enter another positive integer:"
    @integer << gets.strip

    if @integer[@i].match(/\d+/)
        sum_integer_multiples
    else
        get_another_integer
    end  
end

#get_input ⇒ Object

get input from the user



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# File 'lib/adding_multiples/CLI.rb', line 20

def get_input
    @i = 0
    @integer = []

    get_positive_integer 
end

#get_positive_integer ⇒ Object

get a positive integer from the user



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# File 'lib/adding_multiples/CLI.rb', line 28

def get_positive_integer
    puts "\nPlease enter a positive integer:"
    @integer << gets.strip

    if @integer[@i].match(/\d+/)
        @i += 1 
        get_another_integer  
    else
        get_positive_integer
    end  
end

#subtract_common_multiples ⇒ Object

subtract common multiples



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# File 'lib/adding_multiples/CLI.rb', line 103

def subtract_common_multiples
    @sum -= @common_multiples_sum
end

#sum_common_multiples ⇒ Object

sum common multiples



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# File 'lib/adding_multiples/CLI.rb', line 81

def sum_common_multiples
    @range = [1, 1000]
    @least_common_multiple = 15
    @common_multiples_sum = 0
    @multiple = 0


    while @multiple < @range[1]
        @common_multiples_sum += @multiple
        @multiple += @least_common_multiple
    end
end

#sum_integer_multiples ⇒ Object

loop through multiples and compare to range [1-1000], consider allowing user input for range



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# File 'lib/adding_multiples/CLI.rb', line 54

def sum_integer_multiples
    @range = [1, 1000]
    @sum = 0

    @integer.each do |i|
        integer = i.to_i
        @multiple = 0
        while @multiple < @range[1]
            calculate_sum
            @multiple += integer
        end
    end
    
    # sum common multiples and subtract from total
    sum_common_multiples
    subtract_common_multiples

    puts "The sum of the multiples of the integers #{@integer} that are less than #{@range[1]} is #{@sum}"

end