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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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