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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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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 (-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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Hidden content!
//

// ** *

// * * * * *

//

// * ** * 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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