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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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