Counting Program

[Will Mueller]

I recently actually started "studying" ruby again and attempted to
create a program that would add numbers and print them out (on the
screen of course). Of course the following code would not work:

time1=1
10000000.times do
puts time1+1
end

All it would do, is simply print out the number 2, 10000000 times. I
continually got errors when editing it. Could someone please assist?

With Thanks,

 

[Phillip Gawlowski]

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Will Mueller wrote:

| time1=1
| 10000000.times do
| puts time1+1
| end
|
| All it would do, is simply print out the number 2, 10000000 times. I
| continually got errors when editing it. Could someone please assist?

Well, it's as simple as adding a '=':

time1 = 1
10000000.times do
~ time1 += 1 # this is shorthand for time1 = time1 + 1
~ puts time1
end

You need to tell Ruby, that you want to change the variable explicitly.

A quote I cannot attribute: "Computers never do what they should, only
what you tell them to do".

It might help if you put spaces between operators, as that helps in
catching errors. I am speaking from experience.

- --
Phillip Gawlowski
Twitter: twitter.com/cynicalryan

~ "That's the whole problem with science. You've got a bunch of
~ empiricists trying to describe things of unimaginable wonder."
~ --- Calvin
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[Will Mueller]

Thanks, that worked.

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Hash: SHA1


Will Mueller wrote:

| time1=1
| 10000000.times do
| puts time1+1
| end
|
| All it would do, is simply print out the number 2, 10000000 times. I
| continually got errors when editing it. Could someone please assist?

Well, it's as simple as adding a '=':


time1 = 1
10000000.times do
~ time1 += 1 # this is shorthand for time1 = time1 + 1
~ puts time1
end

You need to tell Ruby, that you want to change the variable explicitly.

A quote I cannot attribute: "Computers never do what they should, only
what you tell them to do".

It might help if you put spaces between operators, as that helps in
catching errors. I am speaking from experience.

- --
Phillip Gawlowski
Twitter: twitter.com/cynicalryan

~ "That's the whole problem with science. You've got a bunch of
~ empiricists trying to describe things of unimaginable wonder."
~ --- Calvin
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[Peter Bunyan]

print "Upto what number? " # ask the question
max = gets.to_i # get a string and convert it to a number
puts *(1..max) # creates a range from 1 to max, then turns it into an
array, then prints each one.