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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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