Force use of a base class method in Java

Question

Lets say I have two classes Base and Derived:

public class Base {
    public Base() { }
    public void methodA() {
        System.out.println("Base: methodA");
        methodB();
    }
    public void methodB() {
        System.out.println("Base: methodB");
    }
}
public class Derived extends Base {
    public Derived() { }
    public void methodA() {
        super.methodA();
        System.out.println("Derived: methodA");
    }
    public void methodB() {
        System.out.println("Derived: methodB");
    }
}

Now with this:

Base d = new Derived();
d.methodA();

Will print:

Base: methodA
Derived: methodB
Derived: methodA

My question is: Is it possible to force d.methodA() to use Base.methodB()? I want the code to print out:

Base: methodA
Base: methodB
Derived: methodA

For those knowledgable in C++, this could be done with something like Base::methodB() in the Base class. Is there an equivalent in Java?

I am almost sure this has been asked before, but I was unable to find anything, I'm sorry if this is a duplicate.

Answer 1

If a method in the base class can have an override, and the derived class has provided one, there is no way to force a call to the method of the base class.

If the base class needs to call the functionality in the base class, it can put it into a separate method, and declare it final. Then it could make a decision between its own implementation and the derived implementation like this:

public class Base {
    public Base() { }
    public void methodA() {
        System.out.println("Base: methodA");
        // Call the derived method
        methodB();
        // Call the base method
        methodB_impl();
    }
    public final void methodB_impl() {
        System.out.println("Base: methodB");
    }
    public void methodB() {
        methodB_impl();
    }
}