國立暨南國際大學 96 學年度第二學期小考試卷

(考試時間: 8:20-8:45)

1. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).
   

   #include <iostream>
   class Complex
   {
   	double Re;	// real part
   	double Im;	// imaginary part
   };
   
   void main()
   {
   	Complex a;
   	a.Re = 1.0;
   	a.Im = 2.0;
   	std::cout << a.Im << std::endl;
   }
   
      

2. (10%) Determine whether the following code is correct or not.  If it is correct, predict its output.  If it is incorrect, point out the mistake(s).

   
   #include <iostream>
   using std::cout;
   
   class Node
   {
   public:
   	int data;	
   	Node* left;
   	Node* right;
   
     void Print()
     {
   	  if (this->left)
   		  this->left->Print();
   	  cout << data;
   	  if (this->right)
   		  this->right->Print();
     }
   
     Node(int i)
     {
   	  data = i;
   	  left = 0;
   	  right = 0;
     }
   
   };
   
   void main()
   {
   	Node one(1);
   	Node two(2);
   	Node three(3);
   	one.left = &two;
   	one.right = &three;
   	one.Print();
   }