0 like 0 dislike
5.6k 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 | 5.6k 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:104.23.197.95
©2016-2026

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
| 5.5k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.7k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users