What are Static Methods and Classes in C#, and How Do They Work?

The static method and class in the c#

In C#, the method can be declared as static, which has a specific impact on its behavior and accessibility.

Static method

The static method is associated with the class itself, not associated with a single instance of the class. This means that you can access the static method, and there is no need to create an instance first. Static method uses Keywords to declare:

Static method is used to perform operations or states that do not need to access instances. For example, the practical program method of calculating the digital steps can be achieved as a static method. static

Static class

<code class="language-csharp">public static void DoSomething() {
   //执行某些操作！
}</code>

C#also allows you to define the entire class as static. Static classes can only contain static members, such as static methods and attributes. Static classes cannot be instantiated, so their members can only be accessed through class names.

For example:

Static classes are used to group related static functions, such as mathematical operations or constant declarations.

Access static methods and classes

<code class="language-csharp">public static class MyMath {
    public static int Add(int x, int y) { return x + y; }
    public static int Multiply(int x, int y) { return x * y; }
}</code>

Static method and class use the class name to access with the membership name. For example:

The advantages of static members

Static members have the following advantages:

<code class="language-csharp">// 调用静态方法
MyMath.Add(5, 10);

// 访问静态属性
Console.WriteLine(MyMath.PI); //假设MyMath类包含一个PI属性</code>

Class level function:

Static methods and classes can encapsulate the operation of a single instance that is not specific to the class. Performance optimization:

Static method is faster than the example method, because they do not involve examples of creating classes.

Simplification:

Static members simplify the code by reducing the needs of classification and inheritance.

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