What are wrapper classes?
An example of an AI chatbot conversation about wrapper classes in programming.
Can you explain what wrapper classes are in Java?
Sure! Wrapper classes in Java are used to convert primitive data types into objects. For example, int can be wrapped in an Integer object.
Why would I need to use wrapper classes instead of primitives?
Wrapper classes provide useful methods and allow you to use primitives in collections like ArrayList, which only accept objects.
Can you give me an example of a wrapper class?
Certainly! The Integer class is a wrapper for the int primitive type. You can create an Integer object like this: Integer myInt = new Integer(5);.
Are there any performance issues with using wrapper classes?
Yes, using wrapper classes can introduce overhead due to object creation and memory usage, so it's best to use them judiciously.
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