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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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