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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)
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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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)
0 like 0 dislike
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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