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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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Hidden content!
//

// **

// ** *** **

//

// * ***** ** * 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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