I can't find the mistake, can anyone help me??
package zh.codegym.task.task05.task0525;
/*
整只鸭子还不够
*/
public class Solution {
public static void main(String[] args) {
Duck duck1 = new Duck();
Duck duck2 = new Duck();
System.out.println(duck1);
System.out.println(duck2);
//在此编写你的代码
Dog dog1 = new Dog();
Dog dog2 = new Dog();
System.out.println(dog1);
System.out.println(dog2);
Cat cat1 = new Cat();
Cat cat2 = new Cat();
System.out.println(cat1);
System.out.println(cat2);
}
public static class Duck {
public String toString() {
return "Duck";
}
}
//在此编写你的代码
public static class Dog{
public String toString(){
return "Walff";
}
}
public static class Cat{
public String toString(){
return "Miao";
}
}
}