问题
I read a book titled 'Object First with Java' and in page 7 the author mentioned that the method signature "provides information needed to invoke that method". And the the author gave the following example:
void moveHorizontal(int distance)
However, today when I was watching a video about C# on Pluralsight, the author said that "the return type of a method is not part of the method signature".
I'm confused now and would like know what is a method signature?
回答1:
A method-signature is the part of the method based on which you overload / override it. It contains :
- The method name.
- The arguments passed to it.
It doesn't contain :
- Scope / access modifier
- return type.
回答2:
Method signature is used in interfaces and in abstract classes, but we always define the method data type(return type). It will be something invaluable if the return type is not a part of the signature.
来源：https://stackoverflow.com/questions/29672548/what-is-a-method-signature