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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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