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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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