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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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#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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* * * *

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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* * ***** ** ****
* ** * ** * * * *



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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