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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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#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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