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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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