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Warmup-1 > loneTeen
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We'll say that a number is "teen" if it is in the range 13..19 inclusive. Given 2 int values, return true if one or the other is teen, but not both.


loneTeen(13, 99) → true
loneTeen(21, 19) → true
loneTeen(13, 13) → false

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

public boolean loneTeen(int a, int b) { }

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