It holds an amount of money as if it were all cents. So for the
amount $12.95, the int variable allCents would be set to 1295. Using
an int variable is somewhat limiting. The largest value of type int is
2147483647, meaning that the largest amount the method can handle
is $21,474,836.47. That is more than $21 million, a nice large sum, but
we often need to consider larger amounts, such as the national budget
or even the salary for the CEO of a large company. How can you easily
change the definitions of the methods in the class DollarFormat so that
they handle larger amounts of money?