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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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#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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