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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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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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