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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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