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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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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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