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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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Hidden content!
#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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