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java动物园案例代码,动物乐园java题目
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编写动物乐园java，满意会加分的！！！
public class Animal
{
public String name;
public int legs;
public String sound;
public Animal(String name, int legs, String sound){
this.name = name;
this.legs = legs;
this.sound = sound;
}
public String toString(){
return name + "\t" + legs + "\t" + sound;
}
public static void main(String[]args)
{
//init
Animal[] animals = new Animal[3];
animals[0] = new Animal("加菲猫",4, "喵喵喵");
animals[1] = new Animal("唐小鸭",2, "嘎嘎嘎");
animals[2] = new Animal("海豚奇奇",0, "海豚音");
byte[] b = new byte[1024];
String[] names = {"猫", "鸭子", "海豚"};
int[] legs = {4,2,0};
String name;
int leg;
String sound;
while(true){
try{
System.out.println("动物名称\t腿的条数\t动物叫");
for (int i = 0; i animals.length; i++) {
System.out.println(animals[i].toString());
}
System.out.println("0-修改，其他数字-退出");
int n = System.in.read(b);
String s = new String(b,0,n);
int oper = Integer.parseInt(s.trim());
if (oper != 0) {
System.out.println("退出!");
return;
}
for (int i = 0; i animals.length; i++) {
System.out.println("请输入"+names[i]+"的名字");
n = System.in.read(b);
s = new String(b,0,n);
name = s.trim();
if (name.length() == 0) {
throw new Exception(names[i]+"必须有名字");
}
System.out.println("请输入"+names[i]+"的腿数");
n = System.in.read(b);
s = new String(b,0,n);
leg = Integer.parseInt(s.trim());
if (leg != legs[i]) {
throw new Exception(names[i]+"必须有"+legs[i]+"条腿");
}
System.out.println("请输入"+names[i]+"的叫声");
n = System.in.read(b);
s = new String(b,0,n);
sound = s.trim();
if (sound.length() == 0) {
throw new Exception(names[i]+"必须有声音");
}
animals[i].name = name;
animals[i].legs = leg;
animals[i].sound = sound;
}
}
catch(Exception e){
e.printStackTrace();
}
}
}
}
凑合写的....
instanceof 不难吧...就是验证类是否为类或者父类的实例...
我看你ppt要求的是自定义异常抛出，接口继承应该很简单，抛出异常参考我的代码即可..
相关问答
Q1: java代码写一个zoo类，要求生成若干个Animal.fish.和bird.并调用他们的属性和方
public class zoo{
String name;
int age;
public zoo(String a,int b){
name = a;
age = b;
}
public String getName(){
return name;
}
public int getAge(){
return age;
}
public static void main(String args[]) {
zoo animal1 = new zoo(fish,1);
zoo animal2 = new zoo(bird,2);
String m = animial1.getName();
String n = animial2.getName();
String p = animal1.age;
String q = animal2.age;
System.out.println("动物为 +m +年龄为+p+");
System.out.println("动物为 + n+年龄为+q+");
}
}
说明，本人只是自己输入的代码，并没有调试，只是告诉你一个框架或是模板，如果需要别的功能，自己添加即可。调试不过，可以在问我，我会告诉你的。
Q2: 编写Java程序，用来描述动物园里的猴子。要求如下 （1） 创建一个Monkey（猴子）类，其属性包括颜色和性别
public class Monkey {
private String color;
private String sex;
public Monkey(String color,String sex) {
this.color = color;
this.sex = sex;
}
public Monkey(String color) {
this.color = color;
this.sex = "公";
}
public Monkey(){}
public String getColor() {
return color;
}
public void setColor(String color) {
this.color = color;
}
public String getSex() {
return sex;
}
public void setSex(String sex) {
this.sex = sex;
}
public int add(int p1,int p2,int p3) {
return p1+p2+p3;
}
public int add(int p1,int p2) {
return p1+p2;
}
}
public class Zoo {
public static void main(String[] args) {
Monkey g = new Monkey("黑");
Monkey l = new Monkey("红","母");
int p1 = g.add(1, 2);
int p2 = l.add(1, 2, 3);
System.out.println(g.getSex()+":"+p1);
System.out.println(l.getSex()+":"+p2);
}
}
Q3: java编写动物世界的继承关系代码
我写了一个，内容比较简单的。代码如下：public class AnimalTest {
Animal animal;
public void eat(Animal animal){
animal.eat();
}
public void walk(Animal animal){
animal.walk();
}
public static void main(String args[]){
Animal animal=new Animal("animal");
Wolf w=new Wolf("wolf");
Goat g=new Goat("goat");
AnimalTest at=new AnimalTest();
at.eat(animal);
at.eat(w);
at.eat(g);
at.walk(animal);
at.walk(w);
at.walk(g);
}
}
class Animal {
String name;
public Animal(String name){
this.name=name;
}
public Animal(){}
public void setName(String name){
this.name=name;
}
public String getName(){
return name;
}
public void eat(){
System.out.println("animal eat");
}
public void walk(){
System.out.println("animal walk");
}
public String toString(){
return name;
}
}class Wolf extends Animal {
public Wolf(String name){
super(name);
}
public Wolf(){}
public void eat(){
System.out.println("wolf eat meat");
}
public void walk(){
System.out.println("wolf walk");
}
public String toString(){
return name;
}
}class Goat extends Animal {
public Goat(String name){
super(name);
}
public Goat(){}
public void eat(){
System.out.println("goat eat grass");
}
public void walk(){
System.out.println("goat walk");
}
public String toString(){
return name;
}
}
Q4: java编程几个类，可以实现动物园中几个科下动物的增删改查
import java.util.ArrayList;
import java.util.List;
class Animal {
public String name;
public String color;
public String toString() {
return " Name: " + this.name + " Color: " + this.color;
}
/**
* 动物吃东西
*
* @param foodName
* 食物名称
*/
public void eat(String foodName) {
}
}
class Dog extends Animal {
public Dog() {
}
public Dog(String name, String color) {
this.name = name;
this.color = color;
}
public void eat(String foodName) {
System.out.println("Dog: " + this.name + " like to eat: " + foodName);
}
}
class Cat extends Animal {
public Cat() {
}
public Cat(String name, String color) {
this.name = name;
this.color = color;
}
public void eat(String foodName) {
System.out.println("Cat: " + this.name + " like to eat: " + foodName);
}
}
class Tiger extends Animal {
public Tiger() {
}
public Tiger(String name, String color) {
this.name = name;
this.color = color;
}
public void eat(String foodName) {
System.out.println("Tiger: " + this.name + " like to eat: " + foodName);
}
}
class Lion extends Animal {
public Lion() {
}
public Lion(String name, String color) {
this.name = name;
this.color = color;
}
public void eat(String foodName) {
System.out.println("Tiger: " + this.name + " like to eat: " + foodName);
}
}
public class Zoo {
public static ListAnimal zooList = new ArrayListAnimal();
/**
* 添加Animal对象
*
* @param obj
*/
public void addAnimal(Animal obj) {
zooList.add(obj);
}
/**
* 根据animal的名字删除对象
*
* @param obj
* Animal对象
*/
public void deleteAnimal(Animal obj) {
boolean deleteFlag = false;
for (int index = 0; null != zooList index zooList.size(); index++) {
if (zooList.get(index).name.equals(obj.name)) {
zooList.remove(index);
deleteFlag = true;
System.out.println("删除: " + obj + " 成功");
}
}
if (!deleteFlag) {
System.out.println("找不到该动物: " + obj);
}
}
/**
* 更新Animal对象信息
*
* @param obj
* Animal对象
*/
public void updateAnimal(Animal obj) {
boolean flag = false;
for (int index = 0; null != zooList index zooList.size(); index++) {
if (zooList.get(index).name.equals(obj.name)) {
zooList.get(index).name = obj.name;
zooList.get(index).color = obj.color;
flag = true;
System.out.println("\n修改成功");
}
}
if (!flag) {
System.out.println("找不到该动物: " + obj);
}
}
/**
* 根据动物名字查询
*
* @param animalName
* 动物名字
*/
public void checkAniaml(String animalName) {
boolean flag = false;
for (int index = 0; null != zooList index zooList.size(); index++) {
if (zooList.get(index).name.equals(animalName)) {
System.out.println(zooList.get(index));
flag =true;
}
}
if (!flag) {
System.out.println("找不到该动物: " + animalName);
}
}
public void display(ListAnimal list) {
for (int index = 0; null != list index list.size(); index++) {
System.out.println("\n" + list.get(index));
}
}
public static void main(String[] args) {
Zoo zoo = new Zoo();
zoo.addAnimal(new Dog("dog1", "black"));
zoo.addAnimal(new Dog("dog2", "black"));
zoo.addAnimal(new Lion("Lion1", "black"));
zoo.addAnimal(new Lion("Lion2", "black"));
zoo.addAnimal(new Cat("cat1", "yellow"));
zoo.addAnimal(new Cat("cat2", "yellow"));
zoo.addAnimal(new Tiger("Tiger1", "yellow"));
zoo.addAnimal(new Tiger("Tiger2", "yellow"));
zoo.updateAnimal(new Dog("dog1","somethingselse"));
zoo.display(zooList);
zoo.deleteAnimal(new Dog("dog2",""));
zoo.display(zooList);
zoo.checkAniaml("Lion1");
}
}
