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CodingBat code practice hcs-strings > hcsStringsFirstWordOccursLater
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Given an input String containing multiple words separated by spaces, return true if the first word occurs again anywhere later in the String (as its own word, or as a series of characters) and false otherwise.

hcsStringsFirstWordOccursLater("stop in the name of the law") → false
hcsStringsFirstWordOccursLater("I sing and I dance") → true
hcsStringsFirstWordOccursLater("my army") → true

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public boolean hcsStringsFirstWordOccursLater(String str) { }

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