Prototype Design Pattern
Learn Prototype pattern in Java. Create objects by cloning existing ones. Implement deep copy and configuration templates.
Creational Patterns
Patterns that deal with object creation mechanisms, trying to create objects in a manner suitable to the situation.
Abstract Factory Design Pattern
Learn Abstract Factory pattern in Java. Create families of related objects without specifying concrete classes.
Builder Design Pattern
Learn Builder pattern in Java. Construct complex objects step by step with fluent interfaces. Handle optional parameters cleanly.
Factory Method Design Pattern
Learn Factory Method pattern in Java. Let subclasses decide which objects to create. Includes real-world examples and code.
Singleton Design Pattern
Learn Singleton pattern in Java. Ensure one instance with global access. Covers thread-safe implementation and common pitfalls.
Structural Patterns
Patterns that ease the design by identifying a simple way to realize relationships between entities.
Flyweight Design Pattern
Learn Flyweight pattern in Java. Share state to support large numbers of objects efficiently. Text editor and game examples.
Bridge Design Pattern
Learn Bridge pattern in Java. Separate abstraction from implementation to avoid class explosion. Cross-platform examples.
Composite Design Pattern
Learn Composite pattern in Java. Treat individual objects and compositions uniformly. Build tree structures like file systems.
Proxy Design Pattern
Learn Proxy pattern in Java. Control access to objects with virtual, protection, and remote proxies. Includes lazy loading examples.
Facade Design Pattern
Learn Facade pattern in Java. Provide a simple interface to complex subsystems. Reduce coupling and create clean APIs.
Adapter Design Pattern
Learn Adapter pattern in Java. Make incompatible interfaces work together. Integrate legacy systems and third-party libraries.
Filter Design Pattern
How filter design pattern works and what are the use cases. This article explains filter design pattern with the help...
Decorator Design Pattern
Decorator Design Pattern is very useful when it comes to modifying the characteristics or functionality of an object at runtime....
Behavioral Patterns
Patterns that identify common communication patterns between objects and realize these patterns.
Visitor Design Pattern
Learn Visitor pattern in Java. Add operations to object structures without modifying classes. Uses double dispatch.
Interpreter Design Pattern
Learn Interpreter pattern in Java. Evaluate domain-specific languages with abstract syntax trees. Build expression parsers.
Memento Design Pattern
Learn Memento pattern in Java. Capture and restore object state for undo/redo without violating encapsulation.
Iterator Design Pattern
Learn Iterator pattern in Java. Traverse collections without exposing internals. Implement custom iterators with examples.
Mediator Design Pattern
Learn Mediator pattern in Java. Centralize complex communication between objects. Reduce coupling in chat rooms and UIs.
Chain of Responsibility Design Pattern
Learn Chain of Responsibility in Java. Pass requests through a chain of handlers. Used in middleware and validation.
Template Method Design Pattern
Learn Template Method pattern in Java. Define algorithm skeleton in base class, let subclasses override specific steps.
State Design Pattern
Learn State pattern in Java. Let objects change behavior based on internal state. Replace complex conditionals with state machines.
Command Design Pattern
Learn Command pattern in Java. Encapsulate requests as objects for undo/redo, queuing, and logging. Practical code examples.
Strategy Design Pattern
Learn Strategy pattern in Java. Swap algorithms at runtime without changing client code. Includes payment and sorting examples.
Observer Design Pattern
How observer design pattern works and what are the use cases. This article explains observer design pattern with the help...
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