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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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