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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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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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