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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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