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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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#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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