【正确答案】public interface Animal {
void run______;
}
class Bird implements Animal {
public void run______ {
System.out.println("鸟儿在飞...");
}
}
class Fish implements Animal {
public void run______ {
System.out.println("鱼儿在游...");
}
}
public class TestAnimal {
public static void main(String[] args) {
Bird bird = new Bird______;
bird.run______;
Fish fish = new Fish______;
fish.run______;
}
}