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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)
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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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