下面是代码样本惹恼我： class Base {
protected:
virtual void foo() = 0;
};
class Derived : public Base {
private:
Base *b; /* Initialized by constructor, not shown here
Intended to
Hoi，我正在学习scala并试图将一些Java代码翻译成Scala。这里有一些下面的代码在Java中，我想翻译 public class Note{
protected void addNote(Meeting n) {
//add n to a list
}
}
public abstract class Meeting{
public Mee