parcel3.java~

来自「Java语言程序设计 教程」· JAVA~ 代码 · 共 22 行

package parcel3;

public class Parcel3 {
  private class PContents extends Contents {
    private int i = 11;
    public int value() { return i; }
  }
  protected class PDestination implements Destination {
    private String label;
    private PDestination(String whereTo) {
      label = whereTo;
    }
    public String readLabel() { return label; }
  }
  public Destination dest(String s) {
    return new PDestination(s);
  }
  public Content cont() {
    return new PContents();
  }
}