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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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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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