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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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Hidden content!
//

// * ** *

// ** ****

//

// * ** * *** 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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