Additional Notes
Why is using ‘==’ with cached Integer values sometimes misleading?
Track: Java
Topic: Core Java
Focus: Wrapper Types and Autoboxing
Java: Wrapper Types and Autoboxing
Answer
Cached values may give false impressions of equality with '=='.
Java caches Integer objects in the range of -128 to 127, so '==' may return true within this range because they reference the same object. Outside this range, '==' may behave unexpectedly, so rely on 'equals()' for consistent value comparison.
Java caches Integer objects in the range of -128 to 127, so '==' may return true within this range because they reference the same object. Outside this range, '==' may behave unexpectedly, so rely on 'equals()' for consistent value comparison.
Topics: Core Java Java Wrapper Types and Autoboxing