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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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//

// **** * *

// ** *

//

// ***** * 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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