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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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#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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