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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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