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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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