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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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