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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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