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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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Hidden content!
//

// * * * * ** *

// * * * *** *

//

// * * * ** * 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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