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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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