What is the error,I can't find any error.but not running

Question

https://code.sololearn.com/cfoIZPc3pdQq/?ref=app

Answer 1

Your main method must be inside a class. Rules of Java... example:

public class Pets {
// your main method
}

If you fix this, then you can deal with the other errors.
Don't be afraid of error messages. They are your friends, not your enemies. Read them, maybe you will figure out what is wrong with your code and where exactly.