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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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