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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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