Can I inherit the String class in C #?
A: The string class is a sealed class and cannot be inherited.
When the sealed modifier is applied to a class, this modifier prevents other classes from inheriting from the class. In the following example, the class Hovertree inherits from the class Keleyi, but no class can inherit from the class Hovertree.
Class Keleyi {}
Sealed class Hovertree:keleyi {}
You can also use the sealed modifier on a method or property that overrides a virtual method or a virtual property in a base class. This will enable you to allow classes to inherit from your class and prevent them from overriding specific virtual methods or virtual properties.
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Whether the string class can be inherited in C #