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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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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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