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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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