Selected Java Interview Questions
Sep 29, 2020 · Backend Development
Why Java Anonymous Inner Classes Require Final or Effectively Final Variables and How Kotlin Handles Them Differently
The article explains why Java anonymous inner classes can only access final or effectively final variables, shows the compiler‑generated bytecode that enforces this rule, and contrasts it with Kotlin's approach of wrapping primitives to allow modification inside such classes.
Anonymous Inner ClassEffective FinalFinal Variable
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