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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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Hidden content!
#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)
0 like 0 dislike
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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