0 like 0 dislike
2.6k 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 | 2.6k 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:172.69.6.107
©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
| 2.6k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 1.8k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users