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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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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 (-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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