What is autoboxing and unboxing in Java?
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1. Autoboxing: Autoboxing allows primitive data types (such as int, double, boolean) to be automatically converted into their corresponding wrapper classes (Integer, Double, Boolean) when required. For example, assigning an int value to an Integer object is automatically handled by the compiler, simplifying code and making it more concise.
2. Unboxing: Unboxing is the opposite process, where wrapper classes are automatically converted back into their corresponding primitive data types. This occurs when a wrapper class object is used in a context where a primitive data type is expected. For example, retrieving the value of an Integer object and assigning it to an int variable is automatically handled by the compiler through unboxing.