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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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