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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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