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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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