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



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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