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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)
0 like 0 dislike
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)
0 like 0 dislike
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)
0 like 0 dislike
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)
0 like 0 dislike
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)
0 like 0 dislike
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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