Stop Exposing Your Fields in C#! Protect Your Code the Right Way

Bharath Kumar J C

Stop Exposing Your Fields in C#! Protect Your Code the Right Way

Avoid Public Fields and Use Access Modifiers Carefully

​Directly exposing fields can lead to tight coupling and unexpected modifications from other classes. Always use access modifiers thoughtfully — default to private, and expose data through properties if needed.

Bad Practice:

public int age;

Good Practice

private int _age;
public int Age => _age;

Why?

Preserves encapsulation

Prevents uncontrolled access or mutation

Improves maintainability and supports future enhancements

💬 Pro Tip:
If you need read-write access, use properties with logic instead of exposing fields.

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