J
John Maclean
Talk about redundancy!
I spent some time with irb with the aim of getting an understanding of
methods and class building. I originally wanted to convert a binary
number to denary, with input from the user.
# strike one!
ruby -e 'p 0b10010101111'
does it on one line.
Anyway, I still looked at the few lines that I had and I'm wondering
how I can convert a user's input into a fixnum?
class B2d
def initialize
@ustring = " "
end
def get_bin_string
p 'binary numbers : '
@ustring = gets.chomp
end
def test_bin_string
if @ustring =~ /[a-z]|[2-9]|[A-Z]| /
p "binary digits only and no spaces, please!"
exit 1
end
end
def put_bin_string
# this is the line in which I originally tried to convert the user's
binary digit to denary puts "your bin #{@ustring.to_i} =
0b#{@ustring.to_i}" end
end
t = B2d.new
t.get_bin_string
t.test_bin_string
t.put_bin_string
--
Regards,
John Maclean
--
Regards,
John Maclean
MSc (DIC)
+44 7739 171 531
I spent some time with irb with the aim of getting an understanding of
methods and class building. I originally wanted to convert a binary
number to denary, with input from the user.
# strike one!
ruby -e 'p 0b10010101111'
does it on one line.
Anyway, I still looked at the few lines that I had and I'm wondering
how I can convert a user's input into a fixnum?
class B2d
def initialize
@ustring = " "
end
def get_bin_string
p 'binary numbers : '
@ustring = gets.chomp
end
def test_bin_string
if @ustring =~ /[a-z]|[2-9]|[A-Z]| /
p "binary digits only and no spaces, please!"
exit 1
end
end
def put_bin_string
# this is the line in which I originally tried to convert the user's
binary digit to denary puts "your bin #{@ustring.to_i} =
0b#{@ustring.to_i}" end
end
t = B2d.new
t.get_bin_string
t.test_bin_string
t.put_bin_string
--
Regards,
John Maclean
--
Regards,
John Maclean
MSc (DIC)
+44 7739 171 531