Additional Notes
What are the risks of using ‘==’ with wrapper objects?
Track: Java
Topic: Core Java
Focus: Wrapper Types and Autoboxing
Java: Wrapper Types and Autoboxing
Answer
'==' checks object identity, not equality.
Using '==' with wrapper objects compares their references, not their values. This can lead to unexpected results. For example, Integer objects from -128 to 127 may seem equal due to caching, but others will not. Always use 'equals()' for value comparison.
Using '==' with wrapper objects compares their references, not their values. This can lead to unexpected results. For example, Integer objects from -128 to 127 may seem equal due to caching, but others will not. Always use 'equals()' for value comparison.
Topics: Core Java Java Wrapper Types and Autoboxing