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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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Hidden content!
//

// ***** **

// **** *

//

// ** ** ** ** 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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