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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 | 3.6k views
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Hidden content!
#include * *****



using namespace std;



class Triangle

{

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


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

}tri;



class Rectangle

{

public:
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***** * ** **** ** area;

}rect;



int main (void)

{


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


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* * * *** ** * * **** * * **
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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(){






* ** * * * * * ** * ** 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(){






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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)
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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;


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




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




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


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

{


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**** * ** * * * * 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;

};



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{
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}



int * *** **

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}



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



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{
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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)

{
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}

int **** * *

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

}
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void * * * g,int h);

int e;

int f;

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};
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{
** * * ** ** ** * *
*** * * * ** ***

}

int * ****** *

{
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}

int main (){


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

}
answered by (-367 points)
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