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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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