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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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