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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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* ** *** ** * *****
* ** *** * * * **



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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