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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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