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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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