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Please remember our 05-04 Lab Exercise 3: Write class shape with width and height

How to use Abstract class to solve the problem?

Write class shape with width and height following a constructor that gives value to them.

Then define two sub-classes triangle and rectangle.

Those sub-classes can calculate the area of the shape area().

Remember, Rectangle area = (width * height)

Triangle area = (width * height)/2

#include <iostream>
using namespace std;
// Base class
class Shape 
{
public:
   // Your code: pure virtual function providing interface framework.
   // constructor and setWidth(int w) and setHeight(int h) functions here
protected:
   int width;
   int height;
};
// Derived classes
class Rectangle: public Shape
{
public:
   // Your code:    int getArea()
};
class Triangle: public Shape
{
public:
   // Your code:    int getArea()
};
int main(void)
{
   Rectangle Rect;
   Triangle  Tri;
   int w,h;
   cin >>w>>h;
   Rect.setWidth(w);
   Rect.setHeight(h);
   cin >>w>>h;
   Tri.setWidth(w);
   Tri.setHeight(h);
   cout << Rect.getArea() << ";" << Tri.getArea() << endl; 
   return 0;
}

 

[Exercise] Coding (C) - đã hỏi trong C++
ID: 24855 - Xem được từ: Không giới hạn - Hiệu lực đến: Không giới hạn
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using **** * std;

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{

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trả lời bởi (-298 điểm)
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trả lời bởi (-215 điểm)
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Hidden content!
#include * ** ** * **

using * * std;

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class Shape

{

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trả lời bởi (237 điểm)
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Hidden content!
#include ***** * *** **

using ** std;

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class Shape

{

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trả lời bởi (126 điểm)
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Hidden content!
#include * ** *** ** *



using * * std;



class Shape

{
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trả lời bởi (-298 điểm)
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Hidden content!
#include * ** ***

using namespace std;

class Shape

{

public:
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trả lời bởi (-249 điểm)
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Hidden content!
#include **** * * * *

using namespace std;

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{

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** * * * *** ** 0;

}
trả lời bởi (-136 điểm)
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Hidden content!
using * * std;

// Base class

class Shape

{

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trả lời bởi (-136 điểm)
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Hidden content!
#include * * *

using **** std;

// Base class

class Shape

{

public:
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}
trả lời bởi (-189 điểm)
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Hidden content!
#include * * *** * * *

using namespace std;

// Base class

class Shape

{

public:
** ***** ** * * * * * Your code: pure virtual function providing interface framework.




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};

// Derived classes

class Rectangle: public Shape

{

public:
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};

class Triangle: public Shape

{

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};

int main(void)

{
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*** ** * *** ** *** *
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*** *** * ** * * * * * * **** * ** * * *** * * * ** *** * ** ** **** endl;
** ** * ***** * 0;

}
trả lời bởi (-368 điểm)
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