আমরা জানি স্টাটিকের ইন্সটেন্স ক্রিয়েট হয় না, আর স্টাটীকের আরেকটা সুবিধা আছে তা হলো স্টাটিক দিয়ে ফিল্ড বানালে প্রজেক্ট যতক্ষন চলবে ততক্ষন স্টাটিক ইনিশিইয়ালাইজ অবস্থায় থাকবে, স্টাটিকের অসুবিধাও আছে যেমন আমরা স্টাটিকের জিনিস পত্র খুব সহজেই ডিপেন্ডেন্সি ইঞ্জেকশন করা যাবে না)
We know that static instances cannot be created, and another advantage of static is that once a static field is created, it will remain in its initialized state for as long as the project runs. However, there are also disadvantages to static, such as the fact that static items cannot easily be injected through dependency injection.
| Feature | static | class |
|---|---|---|
| Usage | Used to define static members (fields, methods, properties) within a class. | Used to define a reference type and create objects. |
| Instance | Cannot be instantiated. Static members belong to the type itself, not instances. | Can be instantiated to create objects. |
| Memory Allocation | Memory is allocated once for the static members, shared across all instances and the type itself. | Memory is allocated for each instance separately. |
| Access | Accessed through the type itself, e.g., ClassName.StaticMember. | Accessed through instances of the class, e.g., objectInstance.Member. |
| Initialization | Initialized at the time of type initialization or when the static member is accessed for the first time. | Initialized when an object is created. |
| Examples | Math.PI (static field), Console.WriteLine() (static method). | string, int, Person (user-defined class). |