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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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