What are wrapper classes?

Question

What are wrapper classes?

Answer

1. Wrapper classes are used to convert any data type into an object.?

2. The primitive data types are not objects; they do not belong to any class; they are defined in the language itself.?

3. Sometimes, it is required to convert data types into objects in Java language.?

4. A wrapper class wraps (encloses) around a data type and gives it an object appearance. Wherever, the data type is required as an object, this object can be used.?

5. Wrapper classes include methods to unwrap the object and give back the data type.