Write a Ruby program to check the armstrong number
Input - 153
Output - 1^3 + 5^3 + 3^3 = 153, so it is Armstrong no.
class ArmstrongNumber
def checkArmstrong
print "Enter the number: "
input_num = gets.chomp.to_i
num = input_num
check = 0
while (num > 0) do
rem = num % 10
num = num / 10
check = check + (rem * rem * rem)
end
if check == input_num
print "#{input_num} is an armstrong number"
else
print "#{input_num} is not an armstrong number"
end
end
end
p = ArmstrongNumber.new
p.checkArmstrong
Output:
Enter the number: 371
371 is an armstrong number
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