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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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