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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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