请问使用JAVA如何编写一个Animal类？

Question

属性：private String type;//动物的类型
构造器://用于初始化私有属性type.
方法：public String toString()//返回动物类型信息
public void sound()//输出动物的叫声信息

Answer 1

public class Animal {private String type="";public Animal(){type="tiger";}public Animal(String type){this.type = type;}public String toString(){return type;}public void sound(){System.out.println(type+"发出了叫声....");}public static void main(String[] args) {Animal a1 = new Animal();//无参的System.out.println(a1);a1.sound();Animal a2 = new Animal("panda");//无参的System.out.println(a2);a2.sound();}}LZ咋连分都不给啊，呵呵，好了可以运行了

Answer 2

public class Animal{private String type;public UserBean() {//默认构造器type="狗"}public UserBean(String typeStr) {type=typeStr;}public String toString(){return type;}public void sound(){System.out.println("类型为"+type+"的叫声信息为*********");}}