public class Test { // example how to check for yourself

  public static void main(String args[]) {
    A x = new B();
    x.doIt(); // B version

  }

}

class A {

  void doIt() {
    System.out.println("A version");
  }
}

class B extends A {

  void doIt() {
    System.out.println("B version");
  }
}