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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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