Private Override : Access Control « Class Definition « Java Tutorial

class PrivateOverride {
  private void f() {
    System.out.println("private f()");
  public static void main(String[] args) {
    PrivateOverride po = new Derived();

class Derived extends PrivateOverride {
  public void f() {
    System.out.println("public f()");

5.25.Access Control
5.25.1.Access Control: four access control modifiers
5.25.2.Class Access Control Modifiers
5.25.3.Using Access Attributes
5.25.4.Class Member Access Matrix
5.25.5.Specifying Access Attributes
5.25.6.The public Book class
5.25.7.Default access level
5.25.8.Class Member Access Control Modifiers
5.25.9.Composition with public objects
5.25.10.The protected keyword
5.25.11.Private Override
5.25.12.Understand the effects of public and private access
5.25.13.In a class hierarchy, private members remain private to their class.
5.25.14.A Superclass Variable Can Reference a Subclass Object
5.25.15.Create a Singleton Object