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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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