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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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