de

//Alert if in offline mode
deStockLookup *deStock = [[deStockLookup alloc] init];
gotInternet = [deStock checkInternet];

In This case, the output of the method checkInternet in the class deStockLookup is assigned to the variable gotInternet.

A simpler code snippet is running a method which takes no input or output. This would be done in the following:

deStockLookup *deStock = [[deStockLookup alloc] init];
[deStock checkInternet];

Notice that it is quite similar to how to call a method within the same class, which is done by:

[self localMethodName];

I use this code in almost every project and its one of those tricky little things I just needed on my site!