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hasDuplicateValue

Language/Type: Java Map collections
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Write a method named hasDuplicateValue that accepts a Map from strings to strings as a parameter and returns true if any two keys map to the same value. For example, if a map named m stores {Marty=Stepp, Stuart=Reges, Jessica=Miller, Amanda=Camp, Meghan=Miller, Hal=Perkins}, the call of hasDuplicateValue(m) would return true because both "Jessica" and "Meghan" map to the value "Miller". Return false if passed an empty or one-element map. Do not modify the map passed in.

Method: Write a Java method as described, not a complete program or class.

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