科目名稱:資訊系統 與網路導論 | 開課系所:資訊工程 學系 | 任課教師 |
吳坤熹 |
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系所別: |
年級: |
學號: |
姓名: |
考試日期 |
2010.2.26 |
(考試時間: 9:10-8:20)
#include <iostream>
using std::cout;
class CStack
{
public:
CStack() // Default Constructor
{
index = 0;
}
void push(int i)
{
a[index++] = i;
}
int pop()
{
return a[--index];
}
private:
#define StackSize 10
int a[StackSize];
int index;
};
int main() {
CStack stack1;
stack1.push(3); stack1.push(8);
cout << stack1.a[1] << "\n";
}
#include <iostream> // Ex7_04.cpp
using std::cout;
using std::endl;
class CBox // Class definition at global scope
{
public:
double m_Length; // Length of a box in inches
double m_Width; // Width of a box in inches
double m_Height; // Height of a box in inches
// Constructor definition
CBox(double lv, double bv, double hv)
{
cout << endl << "Constructor called.";
m_Length = lv; // Set values of
m_Width = bv; // data members
m_Height = hv;
}
// Function prototype to calculate the volume of a box
double Volume(void);
};
int main()
{
CBox box1(78.0,24.0,18.0); // Declare and initialize box1
CBox cigarBox(8.0,5.0,1.0); // Declare and initialize cigarBox
double boxVolume = 0.0; // Stores the volume of a box
boxVolume = box1.Volume(void); // Calculate volume of box1
cout << endl
<< "Volume of box1 = " << boxVolume;
cout << endl
<< "Volume of cigarBox = "
<< cigarBox.Volume();
cout << endl;
return 0;
}
double CBox::Volume(void)
{
return m_Length* m_Width* m_Height;
}
(10%) Determine whether the following code has syntax erros or not. If it is correct, predict its output. If it is
incorrect, point out the mistake(s).
#include <iostream> // Ex7_06.cpp
using std::cout;
using std::endl;
class CBox // Class definition at global scope
{
public:
double m_Length; // Length of a box in inches
double m_Width; // Width of a box in inches
double m_Height; // Height of a box in inches
// Constructor definition
CBox(double lv = 1.0, double bv, double hv = 1.0) // This line is different
{
cout << endl << "Constructor called.";
m_Length = lv; // Set values of
m_Width = bv; // data members
m_Height = hv;
}
// Function to calculate the volume of a box
double Volume()
{
return m_Length*m_Width*m_Height;
}
};
int main()
{
CBox box2; // Declare box2 - no initial values
cout << endl
<< "Volume of box2 = "
<< box2.Volume();
cout << endl;
return 0;
}