Selection Construct

[Kelsey]

I'm doing a worksheet for class, and my teacher has *forgotten* (yet again) to explain things to us. I am wondering what a selection construct is, and how do i use it?

[SuperGenius]

I've never heard of one but it sounds to me like an if structure which will take a certain action based on what input it gets. ex:

code:

if input = 1 then      proca() elsif input = 2 then      procb() elsif input = 3 then      procc() else      procd() end if

this code would run a procedure called proca if the variable input has a value of one, and so one. If input is not equal to 1,2 or 3 then it will call procd

[wtd]

SuperGenius wrote:

I've never heard of one but it sounds to me like an if structure which will take a certain action based on what input it gets. ex:

code:

if input = 1 then      proca() elsif input = 2 then      procb() elsif input = 3 then      procc() else      procd() end if

this code would run a procedure called proca if the variable input has a value of one, and so one. If input is not equal to 1,2 or 3 then it will call procd

More likely the construct in question is:

code:

case input of    label 1: proca()    label 2: procb()    label 3: procc()    label: procd() end case

[Kelsey]

Thank-you both, I guess I'll have to clarify with my teacher.

[SuperGenius]

wtd wrote:

More likely the construct in question is:

code:

case input of    label 1: proca()    label 2: procb()    label 3: procc()    label: procd() end case

hmph. I feel cheated out of an education because of all of the things that I never learned.

[wtd]

SuperGenius wrote:

wtd wrote:

More likely the construct in question is:

code:

case input of    label 1: proca()    label 2: procb()    label 3: procc()    label: procd() end case

hmph. I feel cheated out of an education because of all of the things that I never learned.

The key is never to leave a classroom feeling like you've learned everything there is to learn. If you never go beyond what your professor tells you, then there was no point in taking the class. Any job you'll be able to do, your professor could have done, and faster and better at that.

Use Google. Use usenet and the vast number of comp.lang.* newsgroups. There are lots of resources out there just waiting for someone to use them to expand their knowledge.