0 like 0 dislike
2.9k views

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().
You need to follow the main() below. Please complete the program.

int main (){

    Rectangle rect;
    Triangle tri;
    rect.set_data (5,3);
    tri.set_data (2,5);
    cout << rect.area() << ";" << tri.area() << endl;
    return 0;
}

 

[Exercise] Coding (C) - asked in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited

edited by | 2.9k views
0 0
Called for Help
0 0
Called for Help

27 Answers

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



using namespace std;



class Triangle

{

public:
* * * * * *** * **** ** * * * ** ***


**** * ** ** **** * *** area;

}tri;



class Rectangle

{

public:
* *** ** * * * * * ** ** * ***


* *** * * ** * ***** area;

}rect;



int main (void)

{


** * * ***** ****** ***** * ** rect;
*** * ** ** * * * * * * tri;


** * ** * ** * ***** * * ** * *
* * ** *** **** *** * * * * ****




* ** * * ** * *** ** * * * *
*** * *** *** * *** *




*** *** * *** ** * ** ** ** ***** * ***
* * *** ****** * ** * * **** * * *** *


* **** ** * * ** * *** **** * ** * **** rect.area ** * ** ** ** * * * * * tri.area ** * * endl;
*** * ** * * ** * * * 0;

}
answered by (-324 points)
0 like 0 dislike
Hidden content!
***** *** * ** * *

using * * * std;



class Shape{
**** *


* ***** **** * ** * * * set_data (int a,int b){
** ** * * * ** * ***
** **** * * *** *** * * * * ***



int x;

int y;



};





class ** public Shape{



* ** ** ****** ** * * area(){
*** * * *** * **** ** ** **** ** * * ** ****** * * *** * x*y;




* * * *** ** ** ** * * ** * * ** ** * ** **



};

class * ** * public Shape{
* *** *
*** * *** * **** area(){
*** * ** * * * ** ***
* * * ** * ***** ****





};



int main(){






** ** * ** * **** *** * rect;
* * * * * * **** ** * tri;


* * ** *** * ** * *** ** * (5,3);
* * * * * *** * ** ** ** * (2,5);


* ** * * * * ** * * *** * ** ** ** * ** * * * * * **** * * * * ** * *** * endl;
** ** ** *** ** *** ** 0;
* *** ** ** ******** *
answered by (-34 points)
0 like 0 dislike
Hidden content!
* ** *** * * *

using *** std;



class Shape{
* **


** ** ** * * *** **** * set_data (int a,int b){
* * *** * **** * ** *
*** **** ***** * ** ******



int x;

int y;



};





class ** * public Shape{
* ****


* * * * ** *** ** * * * area(){
** *** * * ** * * ***** * ** ** * ** ** * x*y;




**** * * ** ** * ** * * ** * ***** ** * * **



};

class ** * public Shape{
* *
* ** * ** *** * *** *** area(){
** * *** * ** ** * * * * ****** **** *
**** * ***** *** ** **





};



int main(){






** * * * * ** ** ***** ** ** * rect;
* *** ** * * *** * * tri;


***** * *** * **** **** ** (5,3);
***** **** * *** ** * (2,5);


***** ** ***** ** * *** ** ** * ** * ** ** * * ** * * * * ** * ** ** ** endl;
* ** * * * ** * * *** * 0;
***** * * ** **** ** * *
answered by (-34 points)
0 like 0 dislike
Hidden content!
** ** * * ******* ***

using std;


* * * **
* ** *
* ** * *** float * ***
**** * ** float * *
** ***** ** *** void *** * * * * *
* ** * * * * float * *

};


*** * **
* * ** ** ** *
** ** * * * float * **
*** * * *** float **
* ** ** void ** ****** ** * ******
** * ** ** float *

};



void ** *** :: *** * * * * * *
**** * **** width = * *
* * * ** **** * *** = ** **

}


** * *** :: ***
*** ** * *** * * * * return (width * **

}



void **** :: ***** **** * * *** * * ***
**** * width =
* **** ** * * ** = * ** *

}


* * * :: ***
* * * ** * *** * ** * **** * ** ***

}



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

}
answered by (-134 points)
0 like 0 dislike
Hidden content!
#include ** **** * **



using namespace std;



class Triangle

{

public:
** * * * * ** ** *


** **** * * * *** * **** area;

}tri;



class Rectangle

{

public:
* * * * * ** *** ** ** * ** * * **


******* * * * * * ** * area;

}rect;



int main (void)

{


* * * *** ** *** ** * * * rect;
***** * * * ** * * **** ** * *** tri;


* * * * * ****** * ** *
***** * **** * * ** * *** * * * *




* * ** ** * ** * * **** * * ** *
* * * * *** ** * ** ****




* * ** * *** * ** ** * **** * ** ** * *****
**** ** * ** * * * **** * ** * ***** * **** *


* * ** * *** * ** * * * * rect.area ******* * *** * *** * **** ** tri.area * *** endl;
**** *** ***** ** * ** 0;

}
answered by (-324 points)
0 like 0 dislike
Hidden content!
#include * * * * **



using namespace std;



class Triangle

{

public:
* **** * ** * * ** ** *****


** * * *** ** * ** * * area;

}tri;



class Rectangle

{

public:
* * * *** *** ****** * * ** * * *


* ** ** * * ** ***** *** area;

}rect;



int main (void)

{


* * * ***** ** ** ** **** * rect;
** ** * * ** * * *** ** * **** tri;


* ** **** * * * * **** * ** ** * * *
*** ** * **** **** **** * * *




* * * *** * *** * ** **
* * * * ** ** ** * * *




** ** * * *** *** * * ****** ** * * ** * * ****
**** * * * * * * ** ***** * ******* **** ** *


** **** * * ** * * * *** * * ** ** rect.area * * * * ** **** *** * * ** **** tri.area * * * endl;
* *** * *** *** ** **** ** 0;

}
answered by (-324 points)
0 like 0 dislike
Hidden content!
* * **** ** ***

using * * * std;



class * *****

{

public:
** * * * * * * * **** ** wval, int hval);
* **** * **** * ** area();
*** *
* * **** **** ** *** ** *** weith;
*** **** * * * ***** * * * height;

};



void ** ** ** ** wval, int hval)

{
* *** *** * ** * * * *
** ** * *** * **** * *

}



int * ** * *

{
******* * * * ** *** ********* *** *****

}



class

{
* *
**** **** ** **** ** ** * * wval, int hval);
* * ** ***** *** * ** area();
**
* * * * * * *** * * * **** weith;
* **** * * * * * *** height;

};



void * ** * * wval, int hval)

{
** ** * **** * * * *** * ** **
* ** * ***** ** * *** * *

}



int * *** **

{
* * ** **** ** * * ** *

}



int main (){


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

}
answered by (-581 points)
0 like 0 dislike
Hidden content!
#include ** **** * ***



using namespace std;



class Rectangle

{
*** * ******* * ** * * ** *
* ** * * ** **** ** **** ** *** * * ** * area();
* * * ** * **** ** ** * * ** ****** * ** * ** set_data (int aa, int bb);


* * * * * * ****** ****************
*** * * * ** * ** * *** ** ****** * ** ** * a;
* * * ** * *** ** * ** * * * * ******** b;

};



class Triangle

{
** ** ** * * * * ** * ** *
* *** * ******** * * **** * * * * * * ***** area();
**** ** ** ** ** **** ***** ***** **** *** ** * set_data (int aa, int bb);


*** * * * * * * * * *
* **** ** ** * ** * *** * * * ***** ** a;
* * * *** **** ** * *** ** * * * * b;

};



int * **

{
* ** * * ** * ** *** ** a*b;

}



float ** *

{
* *** * * ** *** **** a*b/2.0;

}



void * *** *** aa, int bb)

{
* * ** * *** **** * = aa;
* * * ** *** * ** * * * = bb;

}



void ** * ** *** aa, int bb)

{
* **** * * ** ** * = aa;
**** ** *** * *** ***** = bb;

}





int main (){


***** *** * ** * *** * * * rect;
**** **** ****** ** **** * tri;
** * * **** * * * * ** * (5,3);
* * * ** * * **** * (2,5);
** *** ** * * *** * ** * ** ** rect.area() *** ***** * *** *** * ** * ** tri.area() ** * * ** endl;
* ** * ** ** * ****** 0;

}
answered by (-364 points)
0 like 0 dislike
Hidden content!
#include ***** ** ** *



using ** std;



class shape

{
* *
* *** * * * *** ** * length;
** * * * * ** * * * ** width;

public:
* * * * * * * * ** * *
** * ****** * * ** * ** ** * * x, int y);

};


* ** *

{
*** * * ** ** ** * * ** = 0;
* ** ** * * ** * ** * * = 0;

}


*** * ** x, int y)

{
**** * ** * *** * * = x;
* ** ** ** ** ** ** ** *** = y;

}



class * **

{
* *
****** * * * **** ***** l;
** ** *** ***** w;
** ***** * ** * * * * ar;
* **
* * * ***** * * * * ***** * * a, int b);
* **** * * * ** * * * * ** area();



};



void * ** *** ** * a, int b)

{
** * * * * * * * ***** * = a;
* * * * * * * * ** ***** * = b;

}



int ** * ** * *

{
*** ***** ** * * ** = l*w;
** ** * ****** ** ** * * ar;

}



class ** *

{
* *
*** * * * * * **** * * * l;
* * ** * *** * w;
***** ** * ***** * **** ** ar;
*** *
******* * ******* * ** * * *** * * a, int b);
**** * * *** * ** ** ** * ** area();

};



void * * * * a, int b)

{
*** * ** * * ** * = a;
* **** ** * ** * * = b;

}



int *** * * *

{
********* ** ** * = 0.5 * l * w;
* ** ** * * ***** ** * ** ar;

}



int main (){


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

}
answered by (-189 points)
0 like 0 dislike
Hidden content!
* * * * *** * ** *
** * *** std;


***** * ****

{
** * *
** * * * ** c,int d);

int a;

int b;

int * *

};

void **** * * c, int d)

{
**** * ** ** * ** * * ** ****
*** * * * * * * * ** **

}

int ** **

{
* ** ** ** * ** * * * **** * a*b;

}
* ** * *

{
* *

void * * g,int h);

int e;

int f;

int **

};
** *** ** ** * g, int h)

{
** ** **** * * ** **
* * * * * * * * * **** *

}

int * *** **

{
** *** * ** **** ** **** **** *

}

int main (){


* *** * * *** **
* ** ** * * ****** * tri;
* *** **** * * ** * * ** * *
* * * * * * ** ***** **** *** * *
*** * * * * * * * * * ***** **** ** * * *** * * ** * ** * *** * * ** endl;
* *** ** ** * ** ** ** 0;

}
answered by (-367 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.6.50
©2016-2025

Related questions

0 like 0 dislike
30 answers
[Exercise] Coding (C) - asked May 18, 2017 in C++
ID: 24769 - Available when: Unlimited - Due to: Unlimited
| 2.9k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 2.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users