Does null have Object type?

Question

Why does this output: "inside String argument method"? Isn't null "Object" type?

class A {
    void printVal(String obj) {
        System.out.println("inside String argument method");
    }

    void printVal(Object obj) {
        System.out.println("inside Object argument method");
    }

    public static void main(String[] args) {
        A a = new A();
        a.printVal(null);
    }
}

Answer 1

The most specific matching method will be called. More information here:

• Which overload will get selected for null in Java?

Answer 2

Yes, but null is also String type and all other types, so it selects the most specific method to call.