Define the behavior of objects. Can accept inputs (parameters) and can return outputs.

Automatic conversion of a wrapper class object back to its corresponding primitive type.

Provides an object representation for primitive data types, allowing them to be used as objects and offering utility methods for operations like conversion

Blueprint or template for creating objects. It serves as the fundamental building block of object-oriented programming in Java.

Instance of a class. It represents an entity and is created using the new keyword.

Automatic conversion of a primitive type to its corresponding wrapper class

Represents immutable sequences of characters and provides methods for text manipulation, such as searching, concatenating, and formatting.