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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)
0 like 0 dislike
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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