OnJava8-Examples/reuse/DerivedSpaceShip.java

// reuse/DerivedSpaceShip.java
// (c)2021 MindView LLC: see Copyright.txt
// We make no guarantees that this code is fit for any purpose.
// Visit http://OnJava8.com for more book information.

public class
DerivedSpaceShip extends SpaceShipControls {
  private String name;
  public DerivedSpaceShip(String name) {
    this.name = name;
  }
  @Override public String toString() {
    return name;
  }
  public static void main(String[] args) {
    DerivedSpaceShip protector =
        new DerivedSpaceShip("NSEA Protector");
    protector.forward(100);
  }
}