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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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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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