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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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#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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