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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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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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