Java Reference Data Types
Java reference data types, also known as reference types, are used to store references to objects in memory rather than storing the actual data directly. These types include classes, interfaces, arrays, and enumerations. Reference types allow for more complex data structures and behaviors by encapsulating data and functionality within objects. Objects created from reference types are stored on the heap memory, and variables of reference types store references (addresses) to these objects. Reference types are used extensively in Java for creating and working with objects, enabling features such as inheritance, polymorphism, and encapsulation. Understanding how to use reference types effectively is essential for developing object-oriented Java programs.