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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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#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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Hidden content!
//

// * * * **

// * * *

//

// ** * 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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