java語言
class?dog{
public?String?name;
public?int?age;
public?void?eat(){
System.out.println("有吃東西的能力");
}
}
class?xiaoming?extends?dog{
}
public?class?Animal?{
public?static?void?main(String[]?args)?{
//?TODO?Auto-generated?method?stub
dog?b=new?dog();
b.age=10;
b.eat();
}
}
對于以上代碼，如果我想我age也打印輸出那應(yīng)該如何修改代碼？
2016-06-29
Dao類繼承Animal就可以了，還有你創(chuàng)建的這個(gè)引用對象 dog b=new dog(); ? "dog"是應(yīng)該大寫的。