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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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