java - Don't you have to use the same parameter names when calling a method? -

in code below, i've written 2 methods:

• one has variable test defined string
• one returns 2 different outcomes depending on typed

i have variable named test in userinputhere while parameter in hello named message. in userinputhere use test instead of message - why work?

does parameter not matter when invoke hello method?

i when entering method returns something, has defined , parameters define further method going work on, so, had assumed that, when calling said method method, have use same parameters, doesn't seem case.

 import java.util.scanner;  public class methodsandparameters {         static scanner input = new scanner(system.in);         public static void main(string[] args){             userinputhere();         }          public static void userinputhere(){             string test = input.nextline();             system.out.println(hello(test));         }          public static string hello(string message){             if (message.equalsignorecase("hi")) {                 return "hello";             } else {                 return "goodbye";                    }         } } 

when invoke hello method, parameter (message) contained inside of hello method itself. allowed pass argument hello long string (since message of type string). not matter pass hello long resolves string. in example, variable test works fine because string.

the program not invoking "test" or invoking "message", invoking hello method can take string argument.