國立暨南國際大學 101 學年度第二學期小考試卷                   (考試時間: 08:10-08:20)

科目名稱：程式設計		開課系所：資訊工程 學系		任課教師	吳坤熹
系所別：	年級：	學號：	姓名：	考試日期	2013.4.26

1. (10%) Determine whether the following code has syntax errors or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   // Static data members
   #include <iostream>
   using std::cout;
   using std::endl;
   
   class CNode
   {
   public:
       int value;
       CNode* previous;
       static CNode* pLastNode;
   
       CNode(int v) :
       value(v), previous(pLastNode)
       { pLastNode = this; }
   };
   
   CNode* CNode::pLastNode = NULL;
   
   int main()
   {
       CNode a(3), b(5), c(7);
       CNode* p;
       cout << (c.previous)->value << endl;
       for (p=&c; p!=NULL; p=p->previous)
           cout << p->value;
       cout << endl;
       return 0;
   }
   
   
   
2. (10%) Determine whether the following code has syntax errors or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   
   // Virtual functions
   #include <iostream>
   using std::cout;
   using std::endl;
   
   class CBase    // P.639 Ex.3
   {
   protected:
       int m_anInt;
   public:
       CBase(int n): m_anInt(n) { cout << "Base constructor\n"; }
       virtual void Print() const = 0;
   };
   
   class CDerived : protected CBase
   {
   public:
       CDerived(int n = 0): CBase(n)
           { m_anInt=n; cout << "Derived constructor\n"; }
       virtual void Print() const { cout << m_anInt << '\n'; }
   };
   
   int main()
   {
       CDerived obj(426);
       obj.Print();
       return 0;
   }