Why is new String(“Hello”) invalid in C#?

Question

What is the logic/reason behind making

String s= new String(\"Hello World\");

Illegal in C#? The error is

The best over

Answer 1

It's .NET, not C#. Look at the constructors for System.String - none accept a System.String

So it's "illegal" for the same reason you can't construct a string with an int.

string x = new String(1);

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Raymond Chen

The answer to "Why doesn't this feature exist?" is usually "By default features don't exist. Somebody has to implement them."

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My guess is that every time someone sat down to implement this constructor. They thought about String.ToString's implementation and determined the constructor would logically undermine that method.