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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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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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