0 like 0 dislike
6k 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 | 6k 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:162.159.115.10
©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
| 5.9k views
0 like 0 dislike
17 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 3.9k views
0 like 0 dislike
20 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24393 - Available when: Unlimited - Due to: Unlimited
| 4.5k views
12,783 questions
183,442 answers
172,219 comments
4,824 users