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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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