SAMS Teach Yourself Perl in 24 Hours THIRD EDITION

Workshop

Quiz

1:	The first argument passed to an object method is always The class name The originally blessed reference Whatever the first argument was when you invoked the method
2:	Can you have method names with the same names as built-in functions, or of already-defined subroutines? Yes, but it's difficult, as noted in Hour 8, “Functions.” Yes, and there are no concerns really. No, it's impossible.
3:	Does the constructor subroutine in a class have to be called new? Yes No

Answers

A1:	b. The reference that was blessed in the constructor is returned to each method. In this way the method gets a handle back to the object, and can use it to do its work.
A2:	b. It's not really a problem because Perl can always tell that you meant the method—and not the built-in—because ...