JAVA object-oriented design pet class method

package ;
public class Pet {
    String name;
    int full;
    int happy;
    public Pet(String name) {
        this(name, 50, 50);
    }
    public Pet(String name,int full,int happy) { 
         = name;
         = full;
         = happy;
    }
    public void feed() {//How to feed pets        if(full == 100) {
            (name+"Already full");
            return;
        }
        ("Give"+name+"Feed");
        full += 10;
        ("Satisfaction:"+full);
    }
    public void play() {//How to play with pets        if(full == 0) {
            (name+"I'm so hungry that I can't play anymore");
            return;
        }
        ("accompany"+name+"play");
        happy += 10;
        full -= 10;
        ("Happiness:"+happy);
        ("Satisfaction:"+full);
    }
    public void punish() {//People punishment method        //Different codes for subclasses, change to debugging method        (
                "beat"+name+"The pp,"+name+"Cry:"+cry());
        happy -= 10;
        ("Happiness:"+happy);
    }
    public String cry() {//The little animal was beaten to cry        //Senseless code        //The cry() method needs to be rewritten in the subclass and returns the specific cry        return "There are crying here";
    }
}

package ;
public class Cat extends Pet{
    public Cat(String name, int full, int happy) {
        super(name, full, happy);
    }
    public Cat(String name) {
        super(name);
    }
    @Override
    public String cry() {
        return "Meow~";
    }
}

package ;
public class Dog extends Pet {
    public Dog(String name, int full, int happy) {
        super(name, full, happy);
    }
    public Dog(String name) {
        super(name);
    }
    @Override
    public String cry() {
        return "Wang~";
    }
}

package ;
 
import ;
import ;
 
public class TestPet {
    public static void main(String[] args) {
        ("1. Dog");
        ("2. Cat");
        ("Select:> ");
        int c = new Scanner().nextInt();
        ("Give the pet a name:");
        String n = new Scanner().nextLine();
        //Define the cat and dog variable        Dog dog = null;
        Cat cat = null;
        if(c == 1) {
            dog = new Dog(n);
            play(dog);
        } else {
            cat = new Cat(n);
            play(cat);
        }
    }
    private static void play(Dog dog) {
        ("Click Enter to execute");
        while(true) {
            new Scanner().nextLine();
            int r = new Random().nextInt(6);
            switch(r) {
            case 0: (); break;
            case 1: (); break;
            default: (); break;
            }
        }
    }
    private static void play(Cat cat) {
        ("Click Enter to execute");
        while(true) {
            new Scanner().nextLine();
            int r = new Random().nextInt(6);
            switch(r) {
            case 0: (); break;
            case 1: (); break;
            default: (); break;
            }
        }
    }
}