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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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