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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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Hidden content!
#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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