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CodingBat code practice

 

containsDuplicate


Define a function that when passed an array, returns true if it contains any item more than once, false otherwise.


containsDuplicate([1, 7, 2, 9]) → false
containsDuplicate([1, 7, -7, 2, 9]) → false
containsDuplicate([0, 0, 0, 0, 0, 0, 0, 0, 0]) → true

...Save, Compile, Run (ctrl-enter)

boolean containsDuplicate(int[] data) { }

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