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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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