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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 | 4.8k views
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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)
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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(){






** *** * ** * * rect;
*** ** * * * *** * * *** 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(){






**** ** * * * * * * **** * ** * * rect;
** * * *** *** ** * * ** 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)
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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)
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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)
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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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