0 like 0 dislike
5.4k 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 | 5.4k 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:104.23.197.94
©2016-2026

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
| 5.3k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.5k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users