0 like 0 dislike
3.7k 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 | 3.7k 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:172.69.6.158
©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
| 3.6k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.5k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 2.9k views
12,783 questions
183,442 answers
172,219 comments
4,824 users