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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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#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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