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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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Hidden content!
//

// *** *

// *****

//

// * **** 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)
0 like 0 dislike
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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