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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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** * ** ** ****** *

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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