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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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