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🚀 Master Java OOP: 10 Best Practices Every Developer Should Know
Top 10+ best practices, focusing on SOLID principles and OOP (Object-Oriented Programming) concepts to write better Java code.
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Object-Oriented Programming (OOP) is the foundation of Java development. Writing clean, maintainable, and efficient OOP-based code improves scalability, readability, and reusability.
Read this article for free on my blog: Top 10 Best Practices for Java Object-Oriented Programming (OOP).
1️⃣ Follow SOLID Principles for Better Code Design
The SOLID principles improve code maintainability and extensibility by reducing tight coupling.
✅ Best Practice: Follow all five SOLID principles when designing your classes.
S: Single Responsibility Principle (SRP)
A class should have only one reason to change.
🔹 Example: Correcting SRP Violation
// ❌ Bad Practice: One class handling multiple responsibilities
class Order {
void calculateTotal() { /* Business logic */ }
void printInvoice() { /* UI logic */ }
void saveToDatabase() { /* Persistence logic */ }
}
// ✅ Good Practice: Separating responsibilities into different classes
class Order {
double calculateTotal() { return 100.0; }
}
class InvoicePrinter {
void print(Order order) { /* UI logic */ }
}
class OrderRepository {
void save(Order order) { /* Persistence logic */ }
}💡 Each class has a single responsibility, making it easier to maintain.
