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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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