运行出错:
Derived.java:11: error: getInfo() in Derived cannot override getInfo() in Base
protected final void getInfo()
^
overridden method is final
1 error
解释:getDetails()
方法是最终的;因此它不能在子类中被覆盖。
98、以下 Java 程序的输出是什么?
class Base
{
protected final void getInfo()
{
System.out.println("method of Base class");
}
}
public class Derived extends Base
{
protected final void getInfo()
{
System.out.println("method of Derived class");
}
public static void main(String[] args)
{
Base obj = new Base();
obj.getInfo();
}
}
运行出错:
Derived.java:11: error: getInfo() in Derived cannot override getInfo() in Base
protected final void getInfo()
^
overridden method is final
1 error
解释:getDetails()
方法是最终的;因此它不能在子类中被覆盖。