0 like 0 dislike
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 | 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:172.69.59.97
©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
| 3.9k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 2.6k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 3.1k views
12,783 questions
183,442 answers
172,219 comments
4,824 users