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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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