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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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