Java Coding Standards

// Naming conventions example
class EmployeeService {}

interface EmployeeRepository {}

final int MAX_LIMIT = 100;

void calculateSalary() {}

public class EmployeeService {

    private static final int MAX_LIMIT = 100;

    public int calculateSalary(int basic, int bonus) {
        return basic + bonus;
    }

    public static void main(String[] args) {

        EmployeeService service = new EmployeeService();

        int salary = service.calculateSalary(30000, 5000);

        System.out.println("Salary: " + salary);

    }
}

// Output:
// Salary: 35000

• 1 Class names → PascalCase (EmployeeService).
• 2 Method names → camelCase (calculateSalary).
• 3 Constants → UPPER_CASE (MAX_LIMIT).
• 4 Package names → lowercase.

• 1 One class per file.
• 2 Proper indentation (4 spaces).
• 3 Logical grouping of methods.
• 4 Avoid long methods.

• 1 Write readable and maintainable code.
• 2 Avoid code duplication.
• 3 Use meaningful comments.
• 4 Follow SOLID principles.

• 1 Improves readability.
• 2 Helps team collaboration.
• 3 Reduces bugs and errors.
• 4 Makes maintenance easier.