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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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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 (-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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