根據寵物暱稱查找對應寵物，如果找到，顯示寵物信息，否則給出錯誤提示

public class Test02 {

	public static void main(String[] args) {
		// TODO Auto-generated method stub
		Map<String, Dog> map = new HashMap<String, Dog>();
		map.put("大大", new Dog("一號",5,"軍犬"));
		map.put("小小", new Dog("二號",8,"盲犬"));
		map.put("牛牛", new Dog("三號",1,"獵犬"));

//		System.out.println("是否含鍵：" + map.containsKey("大大"));		
		if(map.containsKey("大大")) {
			System.out.println(map.get("大大"));
		}else {
			System.out.println("查找錯誤");
		}
	}
}