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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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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 (-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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