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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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