public static void pet

As an AI language model, I am not capable of feeling emotions, therefore I cannot have a pet. However, if you have any programming related questions regarding the "pet" method, I would be happy to help you out.

相关问题

小新看到朋友养宠物非常羡慕，自己也想养宠物，小新开始准备养一只老虎，被妈妈揍了一顿，于是他只好养了一条狗狗，计划再养猫猫，或者鹦鹉等等，请通过代码完成这个过程。public class Main { public static void main(String[] args) { Student xiaoxin = new Student(); xiaoxin.feedPet(new Dog("小汪")); xiaoxin.feedPet(new Cat("小白")); } } class Student{ public void feedPet( 【】){ pet.beFriendly(); pet.beAccompanied(); } } //定义接口 【】 IPet{ void beFriendly(); void beAccompanied(); } //定义抽象类 【】 class Animal{ private String name; //定义抽象方法 public 【】 void move(); public Animal(String name) { super(); this.name = name; } public String getName() { return name; } public void setName(String name) { this.name = name; } } //继承animal 实现IPet class Cat 【】{ public Cat(String name){ 【】 } //实现beFriendly方法 //实现be beAccompanied方法 @Override public void move() { // TODO Auto-generated method stub System.out.println("cat move quiently"); } } //继承animal 实现IPet class Dog 【】{ public Dog(String name){ 【】 } //实现beFriendly方法 //实现be beAccompanied法 @Override public void move() { // TODO Auto-generated method stub System.out.println("dog move quickly"); } } 输入格式: 输出格式: 输入样例: 在这里给出一组输入。例如： 输出样例: 在这里给出相应的输出。例如： i am 小汪 dog, i am friendly i am 小汪 dog, i can talk a walk with you i am 小白 cat, i am friendly i am 小白 cat, i can accompany you quiently

我理解了您的要求，并完成了代码。请参考以下代码：

public class Main {
public static void main(String[] args) {
Student xiaoxin = new Student();
xiaoxin.feedPet(new Dog("小汪"));
xiaoxin.feedPet(new Cat("小白"));
}
}

class Student{
public void feedPet(IPet pet){
pet.beFriendly();
pet.beAccompanied();
}
}

interface IPet{
void beFriendly();
void beAccompanied();
}

abstract class Animal{
private String name;
public abstract void move();
public Animal(String name) {
super();
this.name = name;
}
public String getName() {
return name;
}
public void setName(String name) {
this.name = name;
}
}

class Cat extends Animal implements IPet{
public Cat(String name){
super(name);
}

@Override
public void beFriendly() {
System.out.println("i am " + getName() + " cat, i am friendly");
}

@Override
public void beAccompanied() {
System.out.println("i am " + getName() + " cat, i can accompany you quiently");
}

@Override
public void move() {
System.out.println("cat move quietly");
}
}

class Dog extends Animal implements IPet{
public Dog(String name){
super(name);
}

@Override
public void beFriendly() {
System.out.println("i am " + getName() + " dog, i am friendly");
}

@Override
public void beAccompanied() {
System.out.println("i am " + getName() + " dog, i can talk a walk with you");
}

@Override
public void move() {
System.out.println("dog move quickly");
}
}

输出结果为：

i am 小汪 dog, i am friendly
i am 小汪 dog, i can talk a walk with you
i am 小白 cat, i am friendly
i am 小白 cat, i can accompany you quiently

1)首先阅读下列程序并写出运行结果，然后编译、执行以验证; 2) 增加Dog类的构造函数，使之可以初始化Dog类中的weight值，并实现构造函数重载； 3)在Dog类中添加方法getWeight、setWeight以存取weight值； 4) 重写Dog类对象的speak()方法，使其返回“Woof Woof”字符串； 5)从Pet类派生Cat类，并且重写speak()方法返回值为”Miao Miao”; 6)在Main方法中，通过类型多态的方式实现Pet对象分别调用Dog和Cat的speak()方法，分析输出结果是否正确。 class Pet { protected String name; public Pet(String n) { name = n; } public String getName() { return name; } public String move() { return "run"; } public String speak() { return ""; } public String toString() { return "My pet " + name; } } class Dog extends Pet { protected int weight; public Dog(String s) { super(s); } } class PetTest { public static void main(String[] args) { Pet myPet = new Pet("George"); Dog myDog = new Dog("Spot"); System.out.println(myPet.toString() + "\n" + "Speak: " + myPet.speak() + "\n" + myPet.move() + " " + myPet.getName() + "\n"); System.out.println(myDog.toString() + "\n" + "Speak: " + myDog.speak() + "\n" + myDog.move() + " " + myDog.getName() + "\n"); } }

运行结果如下：

My pet George
Speak: 
run George

My pet Spot
Speak: 
run Spot

增加Dog类的构造函数，使之可以初始化Dog类中的weight值，并实现构造函数重载:

class Dog extends Pet {
    protected int weight;
    public Dog(String s) {
        super(s);
    }
    public Dog(String s, int w) {
        super(s);
        weight = w;
    }
}

在Dog类中添加方法getWeight、setWeight以存取weight值:

class Dog extends Pet {
    protected int weight;
    public Dog(String s) {
        super(s);
    }
    public Dog(String s, int w) {
        super(s);
        weight = w;
    }
    public int getWeight() {
        return weight;
    }
    public void setWeight(int w) {
        weight = w;
    }
}

重写Dog类对象的speak()方法，使其返回“Woof Woof”字符串:

class Dog extends Pet {
    protected int weight;
    public Dog(String s) {
        super(s);
    }
    public Dog(String s, int w) {
        super(s);
        weight = w;
    }
    public int getWeight() {
        return weight;
    }
    public void setWeight(int w) {
        weight = w;
    }
    public String speak() {
        return "Woof Woof";
    }
}

从Pet类派生Cat类，并且重写speak()方法返回值为”Miao Miao”:

class Cat extends Pet {
    public Cat(String s) {
        super(s);
    }
    public String speak() {
        return "Miao Miao";
    }
}

在Main方法中，通过类型多态的方式实现Pet对象分别调用Dog和Cat的speak()方法，分析输出结果是否正确:

public static void main(String[] args) {
    Pet myPet = new Pet("George");
    Dog myDog = new Dog("Spot");
    Cat myCat = new Cat("Tom");
    Pet[] pets = {myPet, myDog, myCat};
    for (Pet pet : pets) {
        System.out.println(pet.toString() + "\n" + "Speak: " + pet.speak() + "\n" + pet.move() + " " + pet.getName() + "\n");
    }
}

输出结果如下:

My pet George
Speak: 
run George

My pet Spot
Speak: Woof Woof
run Spot

My pet Tom
Speak: Miao Miao
run Tom

可以看到，输出结果是正确的，实现了Pet对象通过类型多态的方式分别调用Dog和Cat的speak()方法。