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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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