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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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