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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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