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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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