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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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//

// * ** *

// ***

//

// * * * 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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