Design Patterns in Java: JavaBean and Singleton Design Pattern Explained with Examples
📘 Design Pattern in Java A Design Pattern is a reusable solution to commonly occurring problems in software design and application development. Design patterns help developers write clean, maintainable, scalable, and efficient code. They do not provide code directly, but they provide best practices and standard approaches to solve design issues. 🔷 JavaBean Design Pattern A JavaBean Design Pattern is used to create simple, reusable, and encapsulated Java classes mainly for data transfer within an application. ✅ Rules of JavaBean Class A JavaBean class must follow these rules: The class must be declared as public It may implement the Serializable marker interface All instance variables must be private It must contain public getter (accessor) and setter (mutator) methods It must have a public or protected constructor It should not contain business logic (recommended) 🎯 Purpose of JavaBean Design Pattern Used for data transportation inside an application The object of a JavaBean class ...