Java 基础总结

文章目录

• 一级目录

一级目录

public interface Flyable {
   
  void fly()；
}
public class FlyAbility implements Flyable {
   
  @Override
  public void fly() {
    //... }
}
//省略Tweetable/TweetAbility/EggLayable/EggLayAbility

public class Ostrich implements Tweetable, EggLayable {
   //鸵鸟
  private TweetAbility tweetAbility = new TweetAbility(); //组合
  private EggLayAbility eggLayAbility = new EggLayAbility(); //组合
  //... 省略其他属性和方法...
  @Override
  public void tweet() {
   
    tweetAbility.tweet(); // 委托
  }
  @Override
  public void layEgg() {
   
    eggLayAbility.layEgg(); // 委托
  }
}