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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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