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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)
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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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