What is Java Wrapper Class?

Wrapper class in Java are classes that provide a way to use primitive data types (such as ‘int’, ‘char’, ‘boolean’, etc.) as objects. Wrapper classes are used when an boject is required, but only a primitive type is available.

There are eight wrapper classes in Java, each corresponding to one of the primitive data type.

Wrapper classes provides several useful methods for manipulating and converting primitive data type. For example, you can use wrapper class to convert a string representation of a number to n actual number, or to convert a primitive type to a string. Wrapper class also provide constant for the minimum and maximum values of the corresponding primitive type as well as methods for comparing and sorting objects of the same wrapper class.
Here’s an example of using a wrapper class in Java:

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