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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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