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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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#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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