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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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