0 like 0 dislike
4.8k 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 | 4.8k 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:172.69.130.93
©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
| 4.6k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.1k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 3.7k views
12,783 questions
183,442 answers
172,219 comments
4,824 users