Index[SYMBOL] [A] [B] [C] [D] [E] [F] [G] [H] [I] [K] [L] [M] [N] [O] [P] [R] [S] [T] [U] [V] [W] [X] [Y] object-oriented modules 2nd exporting testing objects creating 2nd destruction of 2nd at end of program effects of for nested objects instance data for accessing filehandles in in hashes 2nd invoking methods of 2nd mock objects, testing with setters for testing membership of ok function 2nd OOP (object-oriented programming) encapsulation inheritance multiple inheritance of constructors when to use open statement, creating filehandle references in 2nd operators list operators our declaration |