0 like 0 dislike
2.8k 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 | 2.8k 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:172.69.6.79
©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
| 2.8k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 1.9k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 2.2k views
12,783 questions
183,442 answers
172,219 comments
4,824 users