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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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