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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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Hidden content!
#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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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 (-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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