【简答题】阅读下面的程序，修正其中的错误并说明原因interface Animal {    int  i;       void breathe();     void run();    void eat(){};}class Dog implements Animal {      void breathe() {     System.out.println("I’m breathing")}public int run(){ }    public void eat() {    System.out.println("I’m eathing")}}public class test04 {    public static void main(String [] args) {      Dog dog = new Dog();      dog.breathe();      dog.eat();}}