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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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