日期:2014-05-20 浏览次数:20943 次
class Meal {
Meal() { print("Meal()"); }
}
class Bread {
Bread() { print("Bread()"); }
}
class Cheese {
Cheese() { print("Cheese()"); }
}
class Lettuce {
Lettuce() { print("Lettuce()"); }
}
class Lunch extends Meal {
Lunch() { print("Lunch()"); }
}
class PortableLunch extends Lunch {
PortableLunch() { print("PortableLunch()");}
}
public class Sandwich extends PortableLunch {
private Bread b = new Bread();
private Cheese c = new Cheese();
private Lettuce l = new Lettuce();
public Sandwich() { print("Sandwich()"); }
public static void main(String[] args) {
new Sandwich();
}
}