Language Upgrades · interview question
Which of the following demonstrates the correct usage of pattern matching for instanceof in Java?
Multiple choiceEasychapter-12-curatedpremiumlanguage-upgradespattern-matching
Answer and explanation
Correct answer
A. If (obj instanceof String s) { System.out.println(s.length()); }
Why
Pattern matching for instanceof allows direct use of the matched type variable within the block. Option 1 is correct as it demonstrates the use of the pattern variable 's' directly without casting.
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