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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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