package B;
import A.Base;
class Subclass extends Base{
public static void main(String[] args){
Base b=new Base();
//b.privateMethod();//illegal
//b.packageMethod();//illegal
//b.protectedMethod();//illegal
b.publicMethod();//legal 不同package只能呼叫public成員
//System.out.format("privateData: %2d%n",b.privateData);//illegal
//System.out.format("packageData: %2d%n",b.packageData);//illegal
//System.out.format("protectedData: %2d%n",b.protectedData);//illegal
System.out.format("publicData: %2d%n",b.publicData);//legal
Subclass s=new Subclass();
s.publicMethod();//legal
s.protectedMethod();//legal protected資料可由他的子類別存取
System.out.format("protectedData: %2d%n",s.protectedData);//legal
//s.packageMethod();//illegal
//System.out.format("packageData: %2d%n",s.packageData);//illegal 跨package不能使用package變數
//System.out.format("privateData: %2d%n",s.privateData);//illegal private變數不能繼承
}
}
