PROGRAMMING:Program error correction 2

Program correction. There are errors in the following code, please modify and submit.

public class Main {
public static void main(String[] args) {
Animal animal = new Dog();
animal.shout();
animal.run();
}
}
class Animal {
void shout() {
System.out.println("animal shout！");
}
}
class Dog extends Animal {
void shout() {
super.shout();
System.out.println("wangwang……");
}
void run() {
System.out.println("Dog is running");
}
}

###Input format:
###Output format:
###Input example:
```in
nothing
```
###Output example:
```out
animal shout！
wangwang……
Dog is running
```







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