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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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