Java insists that the object is initialized from the top of the class hierarchy downward : Constructor « Object Oriented « SCJP

1. SCJP
2. Object Oriented
3. Constructor

public class MainClass {
  public static void main(String[] argv) {
    new MySubclass();
  }
}

class MyClass {
  public MyClass() {
    System.out.println("MyClass");
  }
}

class MySubclass {
  public MySubclass() {
    System.out.println("MySubclass");
  }
}