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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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