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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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***** ** * * * * ***

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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