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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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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 (-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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