0 like 0 dislike
620 views

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) - asked in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 620 views

17 Answers

0 like 0 dislike
Hidden content!
#include * * * * * *

using * ** std;

// Base class

class Shape

{

public:
* ** * ** ***** **** * * Your code: pure virtual function *** ** ****
** **** * ** * ** * and * * * w) and * **** h) * ** ** here
* ** * ** *** ***** * w){width = w;}
* ** **** * * ** * * ** ** = h;}
*
* * * ** ** width;
*** ** * * * **** * height;

};

// Derived classes

class **** public Shape

{

public:
*** * * ** * Your code: ** ** * **** * *
* ******* **** * * * * area;
* ****** * * * * * * = * *
* *** ** * * * * * * ** ** * area;
* ***** **

};

class ** *** public Shape

{

public:
** ** * * * * Your code: * ** ** *** * * ** *** ***
* * * *** * ** ** ** * *
* * * *** ** * * * ** * ** area;
***** ** * **** *** ** = (width * **** *
** * * ** ** ** **** **** area;
***** ***

};

int * ** *

{
* * * ** * * * ** Rect;
* ** * ** ** * **** * **
** **** **** * *** w,h;
* * ** ** * * * * *** * ***** **
* **** **** * * *** * **
***** ** ******* * *
*** * * ** ** * * * *** ** *
** ** *** * * * ****
*** * ***** **** *** * *
* * * ** * ** * * * *** * * ******* * * ***** ** * * *** * *** * * ********* ** endl;
* * * * *** * ** * 0;

}
answered by (-298 points)
0 like 0 dislike
Hidden content!
#include ** * * ** *

using * * * std;

// Base class

class Shape

{

public:
**** * ** * * Your code: pure virtual function ** * ** ** *
* ** * * * * *** * ** * and ** * ** w) and ** * h) ** here
** * ** * ** * ** ** * * w){width = w;}
* * ** ******** ** ***** *** * * = h;}
* * **
** * *** ** * * width;
* ** ***** * * **** height;

};

// Derived classes

class ** public Shape

{

public:
** ***** * ** * Your code: * * * * * ****** * *
* * * ***** * * **** * ** area;
** * ** * *** * ** ** ***** = ***** *
** ***** ** * * * *** * * * * area;
** ** ****** * *

};

class *** * public Shape

{

public:
** ******* * Your code: * * * **** * * ***
* *** * ** ** ** *
** ***** ** ***** area;
* ** ***** * * * ** * ** = (width * * **
* **** * ** *** * * * area;
* * * * *

};

int ***

{
*** * * ** **** ** ** * Rect;
* * * * * ** * ****
* ** * * ** w,h;
****** *** * * **** * ** * ** * * ** *
** * * * **** ** * ****
**** * * * *** * ****** ******
*** * **** * * * ** * * ** **** * ** ** **
* **** ** * ******* * ***
* * * ** ** ** * ***
* *** * * * * * *** * * * * ** * * * * * *** * * * ** **** * * ** * ** * * * ** * ** ** * * endl;
*** * * **** *** * 0;

}
answered by (-215 points)
0 like 0 dislike
Hidden content!
#include **** *

using * * std;

// Base class

class Shape

{

public:
**** * ** ** *** ** ***** Your code: pure virtual function **** * *** * * *
* * **** * **** ** * and * w) and *** h) * here
** * * ***** ** ** w){width = w;}
*** * ** * * ** * * * * ** * = h;}
* * **
* **** * **** width;
*** * * ** * * height;

};

// Derived classes

class ** **** public Shape

{

public:
****** ** * Your code: * ***** * *
**** *** * ** * * ** ** * area;
* * * * ******** = * *
* ** *** ** * ** ** *** * area;
*** **** * * * ****

};

class ** public Shape

{

public:
******** * * Your code: ****** ** ** ** ***
**** ** * ****** * *** *
* * ** ** * **** ** **** area;
* * ***** ** * ****** = (width * * *** *
** **** * * ** ** * * area;
* * ** **

};

int *** * *

{
** * ***** * * **** * *** Rect;
** * ** * * * ** ** * * ****
*** * w,h;
** * ** * * ** **** * * ** *** * *
* **** * ** * * * **
* * * **** **** ** * *
***** **** * * * *** * ** * ** **** * *
* * ** * * ******* ***
** ** ******* * ** * ** **
* * *** **** * * * *** * *** * * * * * * * * ** *** * ** ** * endl;
* ** ** ** * * * *** ** * 0;

}
answered by (237 points)
0 like 0 dislike
Hidden content!
#include * **** ****

using ** std;

// Base class

class Shape

{

public:
*** ** ***** * Your code: pure virtual function ** * *** ***
*** ** * * * * *** * * * and **** w) and * * ** h) ** * here
* * * ** *** * *** w){width = w;}
** * ** * * * * * * = h;}
****
*** * *** width;
* ** * ** * **** height;

};

// Derived classes

class * * ** ** public Shape

{

public:
* * ** ******* ** Your code: * ** * *** * *** ** ***
** ** ** * **** * *** ** area;
** **** ** ** * **** * = ** * * * *
** * * ****** ******** area;
* * ** * *

};

class * * public Shape

{

public:
* * ** * * * * Your code: * *** **** * *** ** ***
* ** * ****** ** * * *** *
* **** **** ** area;
* ** ** ** ******** = (width * * * * **
* * * * *** ** *** * * area;
*** * * * * * *

};

int * *

{
*** * *** * *** * * * Rect;
** * **** * ** * * **
*** * *** *** ** **** * w,h;
* ** ** * *** * * ** * * *
*** ** * * *** **** * **** ***
* *** *** *** **** ** **
* ** * **** ** ** * ** * ***** ********
** ** ** ** * * * ** **
** *** * * ** * * * * * *
** * * ****** * * ** ** * *** * ** * ** ** ** ** ** * * * ** *** *** * endl;
**** * ** * * ** * 0;

}
answered by (126 points)
0 like 0 dislike
Hidden content!
#include * *** ** * **



using ** ** std;



class Shape

{
***
* * * * * ** * * * ** width, height;

public:
* * * *** * ** ** set_data (float a, float b)
** *** * * ** * * *
** ***** * *** ** ** ** **** * ** * * * *** ** = a;
* * ** * *** * * * * * ** ** ** * ** ** * = b;
* * * *** ** ****** * * *

};



class * ** * public Shape

{

public:
** **** ** * *** ** area ()
* ** *** **** * *** ***
* * * *** * ** * * * * ** **** *** * * (width * height);
** * *** **** **

};



class * * ** public Shape

{
* **
* * * **** * *** area ()
** * * ** * ** ** *
*** ** **** *** ** * ** * * * * * ** ** * (width * height / 2);
** * ** ** * * * * ***

};



int main (){
*** ** * * ** *
* * * ** **** * * * * * * rect;
* * ** ** * * ** ***** tri;
*** * ****** * * * ** * * ** (5,3);
* ** ** * * * * ** ** * **** (2,5);
***** * * ** ***** * *** * * *** * * * **** * *** *** * ** ** * * *** ** ***** ** * * endl;
* ** *** * *** * ** ** 0;

}
answered by (-298 points)
0 like 0 dislike
Hidden content!
#include ** * ** **

using namespace std;

class Shape

{

public:
* **** * * * **** *** * ** ** int setWidth(int n1){
** ** * * ** * * *** * *
** * ** *** *** ****
* ** * * * *** ***** * int setHeight(int n2){
** * *** * ** ** **** * * **
** ******** *****
* *** * ** * * ** getWidth(){
*** *** * ** *** ** ** *** * width;
* * ** ** * **
***** ** * * * * getHeight(){
*** ** ** * *** **** * * height;
* * ** * ***

protected:
* ** ***** *** * width;
** *** *** **** height;

};



class Rectangle: public Shape

{

public:
** ** **** * getArea(){
** * ** * * * * * ****** *** ** *** **** * **
* * *** * **

};

class Triangle: public Shape

{

public:
** ***** * * * * * * getArea(){
**** ** * ** * * * * * ** ** ** * ******* * * *
* * * ** ** * **

};

int main(void)

{
* ** * * ** * ** Rect;
**** * * * * * * ** ***
*** * **** * * w,h;
* * * ** *** *** **
** *** * ***** * * *
** ** * ** * * ** * ***
* *** *** * **** ** * ***** ** * ** *** ** *
* ** ** *** **** * **
* * * * ***** ** ***** *** *
* ***** * **** ** * ** * ** ** *** *** ** * **** * * * * ** * ** *** * * *** ***** endl;

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

}
answered by (-249 points)
0 like 0 dislike
Hidden content!
#include ** * ******* *

using namespace std;

// Base class

class Shape

{

public:
* * ** ** ** * * Your code: pure virtual function ** ** ** ** ** *
***** * * **** ** * *** and * * * ** w) and *** * * *** h) *** ** here
* * * ** * * * *** * ** x);
*** * * ** ** * *** y);
* **
* **** ** * * width;
*** * ** ** * * * height;

};

// Derived classes

class * public Shape

{

public:
* * * * ** ****** Your code: * ** * * ** * * * ** * *
** **** ** **** * *
* * * * ** ** * ****** * **** *** * * ** *** ** * ***
** ** * *** *

};

class Triangle: public Shape

{

public:
*** * *** ****** ** Your code: * * * ** ***** ** ** ***
** * ** ** ** * *
** * * * * * ** ** *** * *** * *** * *** * * ** * * *
* * * * ** ** * *

};
* * *

int ** * **** x){
** * * ** * = x;

}

int ** ** *** * y){
** **** *** * ** * = y;

}



int * **

{
* * ** Rect;
***** ** * ***** * * ** * *
* ** * ** * *** w,h;
** *** * ** ** *** * * * *** **
***** * *** *** ** * ** * *
* * * * *** ******** * * ** * *
*** * * **** * * * * ** **
*** ** * * ***** *** **** ***** *
** * ** ** **
*** **** * ** ** * * *** ** * * * * * * *** * * ** ** ** ** * * * **** endl;

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

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
using ** std;

// Base class

class Shape

{

public:
** * * ******** Your code: pure virtual function ** ** ** * * * **
* ** **** * * ** ** * and * ** * w) and ** * * * h) functions here
** ** * ***** * *** ** * ** x);
* * * * ** ** **** * * ** y);
**
** ** * * * *** ** ** width;
* *** **** * ***** * height;

};

// Derived classes

class * * public Shape

{

public:
* ** * ** * * Your code: ** * ** * *** *** getArea()
**** ** *** ****** ** ***
* ****** * ** ***** *** ** * ** ** ** *** * ***
* * ** * **** *** *

};

class * ** public Shape

{

public:
* ** ******* * * ** * Your code: * * **** * * ****** *
** * * * * * * ***
* ** *** * * * **** ** *** ***** * * * * **** ***
*** ** ** * *

};
*******

int * ** *** x){
* * * ** * **** * *** * = x;

}

int * ** * ** y){
* * * * ** * *** * = y;

}



int ** *

{
** *** * * * **** * ** Rect;
* **** * * * * * **** *
* ** ** * *** w,h;
** * * * * * * * * * * * * * ** **** *
** * * * ** * *** ***
* *** ***** ** * *** *
** * * * ** * * ***** * ** ****
* ** **** ** ***
**** * ***** ******* ** * * **
* * *** ** * * * ** * ** ** * *** **** ** *** * * ** * * **** ** * * *** * * * endl;

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

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
#include * *** * **** **

using * ***** std;

// Base class

class Shape

{

public:
* *** ** **** Your code: pure virtual function * ******* *** **
** ** * * * ** * **** and * ** w) and *** h) ** ** here
***** * * **** * **** w){width = w;}
*** *** ** * ******* * * = h;}
** *** **
* * **** width;
*** ** ** * * * * * height;

};

// Derived classes

class * * *** public Shape

{

public:
* *** **** * * ** Your code: * *** **** * * ** * * ** *
*** *** *** * *** * *** ** area;
* * ** * ***** * * *** = * ****
** * * *** ** ** ** area;
****** * ** ** **

};

class ****** public Shape

{

public:
*** * * * ***** ** * Your code: ****** * * ** * * * ** *
****** * ********* *** * * * *
*** * * ** * **** * ** area;
** *** * *** * * * = (width * * *
* **** ****** ** *** * area;
* **** ** * *

};

int **

{
* ** ** * * * ** * Rect;
* * * * * * *** ** * * ******
***** ** * * ** w,h;
** * * * * * ** ** **** * ** *
* ** * * * * ** **
* * ** * * **** * **** * **
*** ** **** ***** * ** ** *** * *
* * * * * * ***** * * **
** ** * * ***** * ** *****
** ** * * * * * ** * * * * * * * ** *** ** *** *** * * * ****** ** ** * *** * endl;
* ****** ** ****** *** 0;

}
answered by (-189 points)
0 like 0 dislike
Hidden content!
#include ** * *** **

using namespace std;

// Base class

class Shape

{

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




**** * * **** ** * **
* ** * *** ** ** **** * *** ** * ** * ** *** * *** *
** * ** * ** *** ** * **** *** ** * **** *
* ** * * * *
* * ** * ** * ** ** * ** in){
* * * ** * * * *** * * * * ** * ** *
** *** ** * *
* * * **** * **** ** ** in){
* * * * * ** * * ** ** ** * * * *** *** *
* * * *** * * *
* **** * ** *** * * * constructor and *** w) and ** ** h) functions here
** **
* ***** ** * *** ** * * * width;
*** * * ** * * height;

};

// Derived classes

class Rectangle: public Shape

{

public:
* ** ** ** * *** Your code: * * * ** * * ** *** * getArea()
**** * * ** ** *** **
* *** *** * * * ** * *** ***** ****** ** * **
* * *** ** ****



};

class Triangle: public Shape

{

public:
***** ***** *** * Your code: *** * ** ** ** * ** getArea()
* **** * ***** ** ** *
** * * **** ** * * * * ** * * ** * *** * ** *** *
*** ******* * **



};

int main(void)

{
** * * ** * * Rect;
* *** * * *** ** * *
**** * * * * * * * w,h;
**** **** ** * * * * ** ** *** *
* *** * * ***** * * * ** **
* * * ******* **
* * * *** ** * * * ***** *** * *
*** ** *** * ** * *
* * * *** * * ** * *** ** **
** * *** **** * * * *** * ** * * * * * * * *** ** *** * * * * *** * endl;
** ** *** * ** *** 0;

}
answered by (-368 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.70.130.83
©2016-2024

Related questions

0 like 0 dislike
15 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24854 - Available when: Unlimited - Due to: Unlimited
| 533 views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited
| 893 views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24390 - Available when: Unlimited - Due to: Unlimited
| 211 views
12,783 questions
183,443 answers
172,219 comments
4,824 users