Interfaces and methods of Object class

Question

JSL 2.0 states the following
If an interface has no direct superinterfaces, then the interface implicitly
declares a public abstract member method m with signature s, return type r,
and throws clause t corresponding to each public instance method m with
signature s, return type r, and throws clause t declared in Object, unless a
method with the same signature, same return type, and a compatible throws
clause is explicitly declared by the interface.
But the following codes produces empty output
package test;
import java.lang.reflect.Method;
public class TestIterface {
    public static void main(String [] args){
        Method [] methods=Y.class.getMethods();
        for(int i=0, n=methods.length;i<n;i++)
            System.out.println(methods);
interface Y{
What are the reasons of such behaviour?

Answer 1

then the interface implicitly declares a public abstract member method
"Implicit" means that it's implied that the interface declares those methods; unlike java.lang.Object, there is no interface from which all other interfaces descend. All interfaces at the "top" of the inheritance hierarchy are implied to expose at least the same methods as Object.
Hope this helps...