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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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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 (-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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