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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)
0 like 0 dislike
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)
0 like 0 dislike
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)
0 like 0 dislike
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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