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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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#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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***** * ** * ** * **

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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