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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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Hidden content!
#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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