Declare an enum Currency.
It is to include the following currency codes (according to ISO 4217):
- USD is United States dollar
- EUR is Euro
- GBP is Pound sterling
- RUB is Russian ruble
- UAH is Ukrainian hryvnia
- KZT is Kazakhstani tenge
- CAD is Canadian dollar
- JPY is Japanese yen
- CNY is Chinese yuan
You need to include all of the above codes. Do not include any others. You can declare the constants in the enum in any order.