Question: Write a method that adds an element to a HashSet Write a static method addIfNotThere ( ) that will add an element to a HashSet

Write a method that adds an element to a HashSet
Write a static method addIfNotThere() that will add an element to a HashSet only if it does not already exist, and will print out one of the following messages:
Messages:
If the element already exists in the HashSet, the method prints element+" already exists in the HashSet
If the element is added, the method prints element+" was added to the HashSet
Parameters: a HashSet of String, and a String to add

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