0 like 0 dislike
889 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 | 889 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:172.69.59.199
©2016-2024

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
| 781 views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 590 views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 726 views
12,783 questions
183,443 answers
172,219 comments
4,824 users