Testdome Java Questions And Answers Jun 2026

TreeSet automatically sorts elements naturally (alphabetically). The explicit null checks prevent NullPointerException on hidden test #4.

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Implement a method that, given two arrays of names (strings), returns a of unique names from both arrays. given two arrays of names (strings)

: Use a HashSet to automatically handle duplicates while merging the arrays. Specialized Java Test Topics testdome java questions and answers