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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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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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