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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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