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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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