0 like 0 dislike
3.7k 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 | 3.7k 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:172.69.59.54
©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
| 3.6k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.5k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 2.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users