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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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