【Java每日一题】20161012

package Oct2016;  
  
public class Ques1012 {  
  
    public static void main(String[] args) {  
        System.out.println(new BigDog("大黑狗", "黑色"));  
    }  
}  
  
class Dog{  
  
    String name;  
  
    public Dog(String name) {  
        super();  
        this.name = name;  
    }  
  
    public String toString(){  
        return "name:"+name;  
    }  
}  
  
class BigDog extends Dog{  
  
    String color;  
  
    public BigDog(String name, String color) {  
        this.name = name;  
        this.color = color;  
    }  
  
    public String toString(){  
        return "name:"+name+", color:"+color;  
    }  
} 

今日问题：
请问主程序输出结果是多少？（点击以下每日一题20161013查看问题解析）

题目原发布于公众号、简书：Java每日一题20161013，Java每日一题20161012

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