<ul><li>Design patterns in Java are proven solutions that help developers organize code in a smart and reusable way, acting like blueprints or shortcuts that save time and make software more reliable.</li><li>Five popular Java design patterns are discussed with simple real-life analogies, including Singleton, Factory, Observer, Strategy, and Decorator.</li><li>Singleton ensures only one copy of something exists in a system, similar to a thermostat controlling the temperature in a house.</li><li>Factory helps create different types of objects without users needing to know the details, like ordering a drink at a coffee shop.</li><li>Observer allows one system to notify many others when something changes, similar to a group chat where messages are seen by everyone.</li><li>Strategy enables software to switch between different ways of doing something without full rewrites, like choosing between food delivery or pickup.</li><li>Decorator adds extra features to something without altering the original setup, such as adding gift wrapping to a package.</li></ul>

Design Patterns in Java: Real-World Examples You’ll Actually Understand

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