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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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