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