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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

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#include ** *** * **



using namespace std;



class shape  {
* *** * ** * *
* *** * * * * * * * * ** ** * *** set_data(int x, int y)
** * * *** * * * *** * * **
**** *** ** ** ** ***** * * * * * ***** * ** **** *** ** * = x;
** **** * *** ** * * ****** *** * ** ***** * * ** ** ** = y;
**** * *** ** **** ****** ** *** * *


**** ******* * * **** ** ***
* *** * ** * *** * ** * ***** width;
* **** * * ** * ** * ** **** ** ** * * height;

};



class Rectangle: public shape {
* * ** * * * ***
*** ** * **** *** ***** * * *** area() {
* * ******** ** * * * ** * * ** ** ** * ** *** * ** (width * height);
*** * * * * * * ** **** ***** **

};



class Triangle: public shape {
* * * ** * *
*** ** *** ** * **** * * * *** ** area() {
*** * * ** ***** **** ** ***** ** * ***** * * ** * (width * height / 2);
******* ***** *** * * ** **

};



int main(void) {
** * * * ** *** *** rect;
* ** ** * ** ****** tri;


*** * ** * **** ** 3);
** *** * * * 5);


** ** * * * * ** **** **** ** * rect.area() ** * ** * * * * ** * * tri.area() * ****** endl;


** * ***** ** ** 0;

}
answered by (126 points)
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#include ** ** * ***



using ** std;



class Shape

{
*** *
* * * ** ** ** * * * width, height;

public:
** * * **** * * * *** set_data (float a, float b)
*** * ** *** * ****
* * **** **** ** * ******* * ***** ** *** ** ** * * = a;
** * ** ** * ** * ** *** *** * *** * * * *** * = b;
**** ** * * ** *** *

};



class ** * public Shape

{

public:
* * **** ** *********** ** * area ()
* * * * * * * * * * ****
*** * * **** * * * * ** * ***** ** * *** * (width * height);
* * * * * ***** * * *

};



class **** public Shape

{
* **
* * ** ** * * * ** * ** area ()
* *** ** ** ** * * * * ***
***** ********* * * * *** ****** * ******** * ** *** *** (width * height / 2);
* * **** * ** **

};



int main (){
* * ** * * ** *** ***
* * **** *** ** *** ***** ** *** rect;
* ** *** * * *** ** * ****** tri;
* * * * ** * ** ** ***** * * (5,3);
*** **** * * ** **** *** * (2,5);
* * ** * **** ** ** * * ** **** * * * * * * * ** * * * ** * ** * * * ** endl;
*** **** * **** ***** * * *** * 0;

}
answered by (-215 points)
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Hidden content!
#include * * * **



using *** std;



class Shape

{
* **
* * ** * * * * width, height;

public:
****** * * * *** * **** * * set_data (float a, float b)
* * ** ** ***** * **
* ** * * ** ** * * * *** ** *** * **** * * = a;
* ** *** * **** * *** *** *** ** ** * *** *** * = b;
* * * * * * * ** * *

};



class **** public Shape

{

public:
* **** *** * * * **** * area ()
** ** * * ** **** * ** ***
*** * ** ************ *** * ****** * ** **** (width * height);
* *** **** ** * * * **

};



class ** *** public Shape

{
*** *
** * * * ** * ** ** area ()
* ** ** * *** ** ***
* ** **** ** * **** * *** * * * * * * * ** ** (width * height / 2);
********* * *** * * *

};



int main (){
* * * **** * ** * ** * *
** * **** * * ** * * rect;
*** **** **** *** *** tri;
*** * * *** * *** * ** * ** (5,3);
* ******** ****** ** * * ** * (2,5);
*** ** *** *** ** * * * * ** *** * * * *** *** ** ***** ** * * * ** ** * endl;
***** ******** * ** * *** 0;

}
answered by (-298 points)
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Hidden content!
#include *** * ** ***



using * * ** std;



class Shape

{

* ** * *** * ****** width, height;

public:
*** * * ** ** ** ** ** set_data (float a, float b)
* * ** * * * *** ***
* *** ** * * * * * ** *** * * = a;
** * * ** * ***** ****** * *** * ***** = b;
* * ** ** * * *** * ***** *

};



class ** * * public Shape

{

public:
* * *** * ***** * ** ** ** * area ()
*** * ** ** * ** * *
*** * * ** * * * *** * * *** ******* ** *** (width * height);
* * ***** * *

};



class ***** public Shape

{
*** *
** *** * * * * area ()
*** ** * * *
******* *** * * ** * ** **** * *** * * * (width * height / 2);
* *** * * *** *** ** *

};



int main (){
* ** * ***** *
* * ** ** ** * * rect;
* * *** ** * * * * ** tri;
***** ** * * * *** * ** * *** (5,3);
* ** ** ** * * * * * ** (2,5);
* ****** * ** * *** *** * ** * ** * ** * * * ** *** ***** **** * * ***** ****** endl;
* * *** **** ** ** * * ** 0;

}
answered by (237 points)
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Hidden content!
* * ****** ** **

using ** std;



class *
* ** ** ** *** * * * ** **
* * ** * * ** *** width;
* ** **** ****** * ** * height;
**** * * *** ** * * ** *** * *** * * ** * * height);
*** * ** * * ** ****** ** area();

};



class * *
*** ** * * * * * * * *
* * * ***** *** * ******** ** width;
* * * * * * * * ****** height;
*** ** * * ** * ** ** * ** * height);
* * * * * * ****** * **** *** area();

};



void * * :: * ** * swidth ,float * * *
** *** *** *** * * *** ***** * = swidth;
** ** * *** *** *** ** * = * **

}



float * * :: area(){
* * * * * ** * ** ***** *** ** **** (width * * **

}



void * * *** :: * ** * swidth ,float ***
** ****** *** ** * ** ** = swidth;
* ** * * * *** * * * = *

}



float Triangle :: area(){
* ** * ** ***** * * * * ** * ** ** * * * ((width * ** ***

}



int main (){
*** ******* ** * * * * rect;
* * * * * * * * * ** * tri;
* *** **** *** ** ** ***** * (5,3);
* *** * * ******* ** ****** (2,5);
* ** * ** ** * * * * *** * ** * * ** * *** * * ** ******* ** * * * ** ** * * * **** * endl;
** * *** * ** * *** * 0;

}
answered by (-136 points)
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Hidden content!
**** ** **

using * ** std;



class ****
** **** ***** ******* ***
*** * * ***** ** ** width;
** **** ** * ** ** ***** * height;
** *** * ** ** *** * *** * ** * height);
* * * * ** * * ** ** area();

};



class ** **
* * ** ** *** ** * **
******* * * * * * *** * * width;
* * ** *** * * * *** * height;
* ** * * ***** * *** * *** ** *** ** *
***** * * * ** ** * ** area();

};



void ** :: * ** swidth ,float * *
**** ** * * ** * = swidth;
****** * * ***** * * * * * = sheight;

}



float * ** :: area(){
* * ***** * *** * ** ** * ** ** * * *** ** *** * (width * ****

}



void :: * swidth ,float * *** *
** * *** * *** = swidth;
** * * * ** * ** **** *** = sheight;

}



float Triangle :: area(){
* ** **** ** * * * ** ****** * ** *



int main (){
** ** ***** * * * * rect;
** * * **** ** ** * ****** * * tri;
** ** ********** * * ** ** * * (5,3);
*** *** *** *** ** * ** ** (2,5);
***** ** * *** * * ** **** * **** * ** **** **** ** ***** * * *** *** * *** endl;
* ** * * ** * * * **** * 0;

}
answered by (-136 points)
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Hidden content!
** *** ** * *
* ** ** * ** *



using namespace std;



class Rectangle{

public:
* * ** * * ** ** * * * set_data(int H, int W){
* * ***** ** *** ** * *** * ** ** = W;
*** *** * * *** ***** *** * * ** ** **** ** * * *** * = H;
* * * * ** * ** * * ***
**** ****** ** * ** * * *** *** area(){
***** * * * * * ** *** * ***** * * *** * * * ** **** ***** *
***** * **** * ****



private:
**** * *** **** **** ******** r_width;
** *** ** ** * * * r_height;



};



class Triangle{

public:
** * *** ***** ** * * * set_data(int H, int W){
** * ** *** *** **** * ******* * ** * * = W;
* ** *** * ** **** ** * *** * *** ** ** * * * = H;
* * * ** * * *
* ** * ** **** area(){
* ** ** ****** * * * ** ** *** * * * ** * * **** *** ** *
** *** * * * ** ** *

private:
** ** * ** ** ** * * t_width;
****** ***** ** * ** ***** * t_height;

};



int main()

{
***** *** ** * * *** * * * rect;
** * ******* ** ** ** *** * tri;
** * **** * * * * ** * **** ** (5,3);
** *** * * * ** * * ** * * ** (2,5);
*** *** * ** * ** * * * * rect.area() ** * * *** * * * * * << tri.area() << endl;
* * * * * * * * * 0;

}
answered by (-368 points)
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Hidden content!
* ** ***** ***** **



using ** ** std;



class **** {
***** ** ** * * * ** width, * * *
** * ** * * **
* * *** ** * * * ** * * ** *** *
* * * * * ****** *** area() ** ** ***** *

};



void * * ** * (int x, int y) {
* ** *** ** ** ** = x;
** ****** * = y;

}



class * ** {
* *** * * ******* *** base, **
*** ** * **
*** ** ***** * **** **** ** *** * *****
* * * ** ** ** * * * area() {return * * *

};



void * ** * **** * (int x, int y) {
** * * = x;
** ** * ** **** = y;

}



int main (){


* * ** * ** *** * *** * ** rect;
** * * ** * * * * * *** * ** * tri;
* * * * ** *** * *** ** * * (5,3);
** * *** * ** ** * *** ** * ** (2,5);
* * * ******* * ** ** ** ** * * * ** ****** * *** * * * ** ** **** * * * endl;
*** **** * ** * ** ** * ** 0;

}
answered by (-218 points)
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//

// * * * *

// ** ** **

//

// **** * by ** on ***

// ** * * * © 2017年 * ** All rights * *

//


**** ** * *
* * * ***

#include ** ** * * **

using ** * std;



class shape {

public:
* * *** * * ** * * * *** * * * width, double height){
** * ******* * ** ** * *** ***** * ** * * * ** = width;
** * ** **** ** *** * * * ** ** ** **** = height;
** *** * * * ** * **



public:
******** ** *** ***** ***** w;
** *** *** ** * ** * *** h;

};



class * * public shape{

public:
* * **** **** ** **** **** area(){
* * * * * *** * *** * * ***** ***** ** * *** *
*** * * ****** * ****

};



class * * public shape{

public:
* * ***** ** ** * *** * * *** * area(){
*** ** **** * * **** ** * * * * ** * **** **** *** ** ** * **
* **** * *** ** * *** * ** *

};



int main (){
* * *** * * * * * *** *
* * ***** *** **** *** * * rect;
*** * * * *** *** * * ** ** tri;
* ** * ********** **** * * ** (5,3);
** * ** **** **** ** (2,5);
** * * *** *** * ** * * ** * ** ** * * * * *** ***** * * * * **** * endl;
* * ** * * * * * ** * 0;

}
answered by (-368 points)
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Hidden content!
* *** * ** * * * *

using * ** std;



class ** **

{

public:
* ** ** ** * ** ** * **** * ** * ** a,int b);
* * *** * * **** area();
** ** * * ** *** * *** * a_,b_;

};



void **** ** *** a,int b)

{
** * * ** ** **** ** * * *
** ** * * ** **** ***

}



int * **

{
* ** * * * * * * * * * * ** *

}





class ** *

{
* *
** * ** *** *** *** **** ** ** a,int b);
* * ** * * * ****** ** area();
* * ** * ***** * ** * a_,b_;

};



void **** * ** * ** a,int b)

{
**** *** * * *** ** *
** * * ** * ** * * ***

}



int ** ** *

{
** * * * ** *** a_*b_;

}



int main ()

{
* ** * * * * ** *** rect;
** * ** * **** **** **** ** tri;
* ****** * ** **** ***** ** * (5,3);
* *** * ***** ** * * * *** ** (2,5);
**** * *** ** * * * *** ** *** * * ** *** *** * **** * * ***** **** * ** * * ***** * ** endl;
** *** * * * * ** *** ** 0;

}
answered by (-324 points)
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