http://www.verejava.com/?id=16992794557845

/**
3. 继承的限制
            java 不运行多继承, 也就是只能继承一个类, 但是其父类可以再继承一个类
            继承具有传递性
*/
public class Inheritence2 {
    
    public static void main(String[] args) {
        //生出一个儿子
        Child son = new Child();
    }
}


class ChinesePeople {
    public ChinesePeople() {
        System.out.println("实例化中国人种");
    }
}


class Father extends ChinesePeople {
    public Father() {
        System.out.println("实例化父亲");
    }
}


class AmericaPeople {
    public AmericaPeople() {
        System.out.println("实例化一个美国人种");
    }
}


class Mother extends AmericaPeople {
    public Mother() {
        System.out.println("实例化妈妈");
    }
}


class Child extends Mother {
    public Child() {
        System.out.println("实例化儿子");
    }
}

http://www.verejava.com/?id=16992794557845