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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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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 (-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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