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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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#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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