接收键盘输入的简单程序2

package lianxi;

import java.io.*;

class Animal {
 public Animal(String name, int age, String hairColor) {
  super();
  this.name = name;
  this.age = age;
  this.hairColor = hairColor;
 }

 String name;
 int age;
 String hairColor;

}

class Dog extends Animal {

 public Dog(String name, int age, String hairColor) {
  super(name, age, hairColor);
  // TODO Auto-generated constructor stub
 }

 void print() {
  System.out.println("名字：" + name + "   年龄: " + age + "   毛色："
    + hairColor);
 }
}

class Cat extends Animal {

 public Cat(String name, int age, String hairColor) {
  super(name, age, hairColor);
  // TODO Auto-generated constructor stub
 }

 void print() {
  System.out.println("名字：" + name + "   年龄: " + age + "   毛色："
    + hairColor);
 }
}

public class Test3 {
 public static void main(String[] args) {
  Dog d1 = new Dog("黑贝大黑", 5, "break");
  Dog d2 = new Dog("京巴哈利", 3, "white");
  Cat c1 = new Cat("波斯猫咪咪", 4, "yellow");
  Cat c2 = new Cat("波斯猫加菲", 4, "yellow");
  InputStreamReader isr = new InputStreamReader(System.in);
  BufferedReader br = new BufferedReader(isr);
  String s = null;
  try {
   s = br.readLine();
   while (s != null) {

    if (s.equals("大黑"))
     d1.print();
    else if (s.equals("哈利"))
     d2.print();
    else if (s.equals("咪咪"))
     c1.print();
    else if (s.equals("加菲"))
     c2.print();
    else if (s.equalsIgnoreCase("exit"))
     break;
    else
     System.out.println("您找的动物不存在！");
    s = br.readLine();
   }
   br.close();

  } catch (IOException e) {
   // TODO Auto-generated catch block
   e.printStackTrace();
  }

 }
}