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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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