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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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