What are wrapper classes in Java, and how do they support autoboxing and unboxing?
Wrapper classes in Java are used to convert primitive data types into objects. Each primitive type (int, float, char, etc.) has a corresponding wrapper class (Integer, Float, Character, etc.). They enable object-oriented features for primitives, making them usable with collections like ArrayList. Autoboxing automatically converts a primitive to its wrapper object, while unboxing does the reverse. This seamless conversion simplifies coding and enhances flexibility in Java programming. Master these concepts with a java certification course.
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