为什么在接口的方法中声明“ VariableDeclaratorId期望”？

Question

when you're creating an interface, why do you have to give the Variable ID's ? You're just making an interface which is essentially a contract.

Why can't my method me like this:

method(int);

and has to be

method(int x);

We are not implementing the methods. I don't see the use of the x here.

Answer 1

In theory, there is no need for parameter names in interfaces, but because that is how methods are generally defined, and has become a requirement.

It also makes the code a lot more readable and maintainable. If there were 5 integers in a row, you would implement that class and have no clue what each of them mean. Even a descriptive method name would not be able to clue you in on that.