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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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