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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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#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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