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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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//

// * *** ***

// * * * ***

//

// ** * * * 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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