0 like 0 dislike
5.6k 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 | 5.6k 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:162.159.115.9
©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
| 5.4k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.6k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.3k views
12,783 questions
183,442 answers
172,219 comments
4,824 users