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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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