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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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