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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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//

// *** *

// ** *

//

// ** ** * * * 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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