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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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