POJO (Plain Old Java Object)
A pure Java object that doesn’t depend on a specific framework/ container
- Focuses on business logic without framework ties
- Highly testable and reusable
- Characteristics
- No special interfaces or inheritance beyond ☕Java standards.
- Works without annotations or configuration files.
- Typically just has getters/setters and a default construtor.
JavaBeans
A specific type of POJO that follows certain conventions (rules) for its properties and behavior.
- Private fields with public getter/setter methods (
getProperty()/setProperty()). - A public no-argument constructor.
- May implement
java.io.Serializable. - Purpose: Enable tools to inspect and manipulate component properties automatically, often used for GUI components or data transfer objects.