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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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