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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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