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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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