关于继承,初始化。。。。。
class Animal{ String color="red"; Animal(){ print(); color="black"; } void print(){ System.out.println("animal color is "+color); }}class Cat extends Animal{ String color="yellow"; Cat(){ print(); super.print(); } void print(){ System.out.println("cat color is "+color); } public static void main(String[] args){ new Cat(); }}