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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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Hidden content!
//

// * ** * **

// ** * **

//

// * * * 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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