some questions about data types

[student111]

Hi

I have a question , do we use data types eg "float", "int" and "double"

only when we do arithmatic operation or we can even use them when we want to specify simply age,bus number and etc in a program?

[fdrake]

Hi

I have a question , do we use data types eg "float", "int" and "double"

only when we do arithmatic operation or we can even use them when we want to specify simply age,bus number and etc in a program?

it depends from the contents ... ex if you need to calculate the average age of a group of ppl you may use float . If you need to find out the tot number of ppl relate to different ages int it's enough.. it all depends how you use your data

[grumpy]

No.

Generally speaking, one would expect to be able to do arithmetic operations on a user-defined UnboundedInteger type.

[iMalc]

You use whatever makes sense according to what data you need to store or manipulate.

Perhaps you'd be better off asking about a particular scenario rather than something general.