Question

how to write this?
addPurses

This method will combine the contents of two Purse objects. For example, if the current Purse object contains 1 penny, 2 nickels, 3 dimes and 4 quarters, and a second Purse object contains 6 pennies, 7 nickels, 8 dimes and 9 quarters, then this method should produce a Purse object that contains 7 pennies, 9 nickels, 11 dimes and 13 quarters.

This method takes one argument: a Purse object and returns a Purse object. The argument passed to this method should be added to the currect Purse object. Note: the current Purse object should not be changed by this meth