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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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Hidden content!
#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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