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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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