為什么我寫的和老師的一樣卻錯了
package?edu.zzuli1;
public?interface?IwatchDoor?{
public?abstract?void?watchDoor();
}
package?edu.zzuli1;
public?class?Animal?{
public?void?eat(){
System.out.println("狗具有吃的能力");
}
}
package?edu.zzuli1;
import?edu.zzuli.IplayGame;
public?class?Dog?extends?Animal?implements?IplayGame?{
@Override
public?void?playGame()?{
//?TODO?自動生成的方法存根
??????System.out.println("狗具有看門的能力");
}
}package edu.zzuli1;
public class Test1 {
public static void main(String[] args) {
// TODO 自動生成的方法存根
IwatchDoor dog = new Dog();
}
}
為什么顯示錯誤，說IwatchDoor dog = new Dog(); ?說類型不匹配，報錯了呢？？？？急急急
2016-05-24
你是要new 一個對象嗎？？類名 對象名 = new 類名；；；IwatchDoor? dog=new?IwatchDoor（）；試試這個
2016-05-24
import?edu.zzuli.IplayGame;這是干嘛的？哪里定義了這個類嗎？