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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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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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