我必須創(chuàng)建一個(gè)狗對(duì)象并賦予它屬性和行為。我已經(jīng)做了屬性，但行為沒(méi)有按我想要的那樣工作。我收到空。public class JavaProgram{    public static void main (String [] args){        Dog dog1 = new Dog ("Luca", "mutt", 'M', 22, 5 );        System.out.println("Dog1's name is " + dog1.getName() + ", its breed is " +        dog1.getBreed() + ", its sex is " + dog1.getSex() + ", its age in months is " +         dog1.getAge() + ", its weight in pounds is  " + dog1.getWeight());        System.out.println("When Dog1 eats it makes the noise " + dog1.getEating() +        ", and when its barks the noise made is " + dog1.getBarking());    }}public class Dog{    private String name;    private String breed;    private char sex;    //In months    private int age;    //In pounds    private double weight;    private String eating;    private String barking;    public Dog(String name, String breed, char sex, int age, double weight){        this.name = name;        this.breed = breed;        this.sex = sex;        this.age = age;        this.weight = weight;    }    public Dog(String eating, String barking){        this.eating = "Chomp, chomp, chomp";        this.barking = "Woof, woof, woof";    }    public String getName(){        return name;    }    public String getBreed(){        return breed;    }    public char getSex(){        return sex;    }    public int getAge(){        return age;    }    public double getWeight(){        return weight;    }    public String getEating(){        return eating;    }    public String getBarking(){        return barking;    }}我應(yīng)該得到“當(dāng) Dog1 吃東西時(shí)它發(fā)出噪音 Chomp、chomp、chomp，當(dāng)它吠叫時(shí)發(fā)出的聲音是 Woof、woof、woof”，但我得到“當(dāng) Dog1 吃東西時(shí)它發(fā)出噪音，當(dāng)它吠叫時(shí)發(fā)出噪音” made 為“空”