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