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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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