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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)
0 like 0 dislike
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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