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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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