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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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