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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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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 (-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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Hidden content!
//

// *** ** **

// * ** * **

//

// **** * ** 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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