bigegg.java

来自「think in java TIJ-3rd-edition-code.zip」· Java 代码 · 共 34 行

//: c08:BigEgg.java
// An inner class cannot be overriden 
// like a method.
import com.bruceeckel.simpletest.*;

class Egg {
  protected class Yolk {
    public Yolk() {
      System.out.println("Egg.Yolk()");
    }
  }
  private Yolk y;
  public Egg() {
    System.out.println("New Egg()");
    y = new Yolk();
  }
}

public class BigEgg extends Egg {
  public class Yolk {
    public Yolk() {
      System.out.println("BigEgg.Yolk()");
    }
  }
  public static void main(String[] args) {
    SimpleTest monitor =
      new SimpleTest("BigEgg");
    new BigEgg();
    monitor.expect(new String[] {
      "New Egg()",
      "Egg.Yolk()"
    });
  }
} ///:~