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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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