Design Patterns Tutorial

Welcome to the tutorial on Design Patterns! Design patterns are reusable solutions to common problems in software design. They are essential for writing scalable, maintainable, and efficient code.

What are Design Patterns?

Design patterns are like blueprints for solving common problems in software design. They provide a higher-level approach to software development, allowing developers to create more robust and flexible systems.

Types of Design Patterns

• Creational Patterns: These patterns focus on object creation mechanisms, such as Singleton, Factory, and Builder.
• Structural Patterns: These patterns deal with the composition of classes and objects, such as Adapter, Decorator, and Proxy.
• Behavioral Patterns: These patterns are concerned with communication between objects, such as Observer, Strategy, and Command.

Example: Singleton Pattern

The Singleton pattern ensures that a class has only one instance and provides a global point of access to it.

public class Singleton {
    private static Singleton instance;

    private Singleton() {}

    public static Singleton getInstance() {
        if (instance == null) {
            instance = new Singleton();
        }
        return instance;
    }
}

Further Reading

For more in-depth information on design patterns, check out our comprehensive guide on Design Patterns.

Design Patterns