0 like 0 dislike
4.3k 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 | 4.3k 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:172.70.126.9
©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
| 4.1k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.8k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 3.4k views
12,783 questions
183,442 answers
172,219 comments
4,824 users