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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)
0 like 0 dislike
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)
0 like 0 dislike
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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