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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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Hidden content!
//

// *** *

// * *** **

//

// * *** *** 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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