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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 | 1.1k views
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Hidden content!
#include * **** *******



using namespace std;



class Triangle

{

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


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

}tri;



class Rectangle

{

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


** ** ** * * * area;

}rect;



int main (void)

{


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* **** * ***** ** * * ***** tri;


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




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




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

}
answered by (-324 points)
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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(){






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*** ** ** * * * * ********* ** * * tri;


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


** ** * * * ******** *** *** ** ** *** * **** * * * * ** * ** * **** * * ** * ** ** * ** endl;
* ***** ** * ** 0;
***** * *** **** *** *
answered by (-34 points)
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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(){






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** ** *** * *** **** ** ** tri;


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


*** ** * * * * ** * * * * * * ** ** * ** * *** ** ** * * ***** **** * * ** * endl;
** ** * * *** * * *** 0;
** *** * * * ** **
answered by (-34 points)
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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)

{


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* * * *** ** ** * * * *** 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)

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

}



int ***** * * *

{
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}



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{
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* ***** ** * *** *** area();
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};



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

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

}



int ** * * * *

{
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}



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)
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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)
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