Is method hiding a form of Polymorphism?

Question

Polymorphism is the ability to take many forms. Method overriding is runtime polymorphism.

My questions are:

1. Is there anything like static polymorphism in Java?

2. Can method hiding be considered a form of polymorphism?

In this question's answer, it is said that static methods are not polymorphic. What is the reason for that?

Answer 1

If we run this test

class A {
    static void x() {
        System.out.println("A");
    }
}

class B extends A {
    static void x() {
        System.out.println("B");
    }
}

class Test {
    public static void main(String[] args) throws Exception {
        A a = new B();
        a.x();
    }
}

it will print A. If method x() were polymorphic, it would print B.