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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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