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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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#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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* * * ** ** ** **

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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