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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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