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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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//

// * * * * *

// * **

//

// ***** * ** 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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