Create a method named sumLongerThan
.
sumLongerThan
accepts a Map
from String
to Int
as its first parameter and an Int
as its
second.
It returns the sum as an Int
of the values of all of the keys that are longer than the second parameter.
For example:
If the length is negative, you should throw an IllegalArgumentException
.
As a reminder, you can iterate over the values in a map like this:
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