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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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