0 like 0 dislike
682 views

Please remember our 05-04 Lab Exercise 3: Write class shape with width and height

How to use Abstract class to solve the problem?

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().

Remember, Rectangle area = (width * height)

Triangle area = (width * height)/2

#include <iostream>
using namespace std;
// Base class
class Shape 
{
public:
   // Your code: pure virtual function providing interface framework.
   // constructor and setWidth(int w) and setHeight(int h) functions here
protected:
   int width;
   int height;
};
// Derived classes
class Rectangle: public Shape
{
public:
   // Your code:    int getArea()
};
class Triangle: public Shape
{
public:
   // Your code:    int getArea()
};
int main(void)
{
   Rectangle Rect;
   Triangle  Tri;
   int w,h;
   cin >>w>>h;
   Rect.setWidth(w);
   Rect.setHeight(h);
   cin >>w>>h;
   Tri.setWidth(w);
   Tri.setHeight(h);
   cout << Rect.getArea() << ";" << Tri.getArea() << endl; 
   return 0;
}

 

[Exercise] Coding (C) - asked in C++
ID: 24855 - Available when: Unlimited - Due to: Unlimited
| 682 views

17 Answers

0 like 0 dislike
Hidden content!
#include * ** * ** **

using * *** * std;

// Base class

class Shape

{

public:
*** ** ** *** ** ** * Your code: pure virtual function * * * * * ***
* ** ** ** ** ** *** and * * *** w) and * * * ** h) *** here
*** ** ***** * ** * **** w){width = w;}
* * ** ** * ** * * = h;}
**
* *** * * * ** * *** width;
**** * * * * * height;

};

// Derived classes

class * ** * public Shape

{

public:
* ** * *** Your code: * * ** * * * **
** ** * * * ***** *** **** area;
***** **** * * * **** = ** *
*** * * * ** * ** ** area;
*** *** * ** * *

};

class ** * public Shape

{

public:
*** ** * * *** * Your code: * * ** ** * * *** *** * ***
** ** ** * * * * *
* * *** *** ** * **** *** area;
** ** * * ** * = (width * * ******
* ** ** * ** * * * *** * area;
* * ** ***** ** *

};

int *** ****

{
** * *** * *** * ** Rect;
* * ** * ****** ***
* * ******** * w,h;
* ** * * * ** *** ** * *
* * * ***** ** ** * *
* * ** * *** **** **
*** * * * ** * ******** * * **
***** ** *** * **** *
* ** ** ** *** ******
* *** * * ** ** * **** * *** * * **** **** * * ** * * * * * * * * *** * * ** * * endl;
* * * * *** * ** *** 0;

}
answered by (-298 points)
0 like 0 dislike
Hidden content!
#include ** * ** * **

using ** std;

// Base class

class Shape

{

public:
******* **** Your code: pure virtual function *** * *** * *
* ***** ** * * * * ** * and ** ** w) and ** * * * h) * * here
* * ** * *** * w){width = w;}
* * * * ** ** * ** * * = h;}
** **
* * * **** * ** ** * width;
*** **** *** ** ** height;

};

// Derived classes

class ** * public Shape

{

public:
** ** ** * * * Your code: * ** * * ***** * ** ****
* *** * * ** ** ** ** * ** area;
* * ** ** ** *** = * * **
* *** * ******** * **** area;
**** ****** ** * **

};

class * * ** public Shape

{

public:
********** ***** Your code: * ** *** **** * ** *
* ** ** *** *** ** ** * **** **
* * *** *** * * * * * * * area;
**** * * *** * *** = (width * *** ** **
* *** ** **** * ** area;
** * ** ** ** * **

};

int * **

{
* ** ***** * * * * Rect;
** * * * ** * * ****** *
* ** ***** ** w,h;
* ** ** ** ****** ** *** **** *** ** *** *
* * ** ** * * *** * ** ***
***** * * ** * * ** *
* * ** * * *** **** * ******* * * * * *
*** * ** * * * *****
** ***** * ** ** **** *
** * * * **** * ** * ** *** ** * *** * * ** *** * **** **** * ** * ** * * * * *** *** endl;
** ** * **** ** * 0;

}
answered by (-215 points)
0 like 0 dislike
Hidden content!
#include * * * ** *** *

using ****** std;

// Base class

class Shape

{

public:
* * ** * ** * * Your code: pure virtual function * * ** ** ** **
* * * *** ** ** ** ** and * w) and ****** ** h) * * here
*** ** ** ** * ** * *** w){width = w;}
** * * ** * *** * ** ** = h;}
* **
* ** * * width;
***** * ** *** * * height;

};

// Derived classes

class * * * public Shape

{

public:
* * ** * * * * Your code: ** * * * ** *
** ** * * * ** * * *** area;
* * ** ** * * * **** * = *** ***
** ** *** *** ** * ** * * * * * area;
*** **** ***** ***

};

class ** * public Shape

{

public:
* * * * * * * ** Your code: * ** * ** * * * ****
* * *** * * * ** * *
**** * * ** *** **** * *** area;
** ** ****** * * * *** **** = (width * * **
** * ***** * *** *** area;
* ** *** * * **

};

int ** *

{
* * ** ** ***** * Rect;
* ***** ** ****** * * ** *
*** *** * * ** * w,h;
* * * * **** * **** * **
* * ***** * * * *** * ***
* * ** *** * * ** * ***** ***
*** *** * * ** * * ** ** **** *** ** *
* * ** ******* ** ***
** ** * * ** * * ** * * *
***** * * * * **** ** ** * ** * * * * ** **** *** * **** ** * ** *** * * endl;
* * * * * * **** ** 0;

}
answered by (237 points)
0 like 0 dislike
Hidden content!
#include ******** *

using ** * std;

// Base class

class Shape

{

public:
** * ***** * * ** Your code: pure virtual function ****** ** * **
* ** ** * * ** *** * * ** and * **** w) and * ** * h) ** here
** **** ** * ***** ** ** w){width = w;}
** ** * * * ***** ** ** * = h;}
*
* * ** * * *** ** width;
*** * *** ** * * height;

};

// Derived classes

class **** public Shape

{

public:
** ** ********* * ** Your code: * ** * *** ** * * ** *
* *** ** ** **** * * * * ***** area;
* ** **** * * ** * **** ******* = ** *
****** ****** ** ** ** * * * * * area;
** * ** * * * **

};

class ** ** public Shape

{

public:
****** *** * **** Your code: * * *** ** * * * * * **
* **** ** ** * ** *
******* ** ** * * * * area;
**** * * ** *** ** = (width * ******
* * *** * *** * ** * * *** area;
* * **** ** * *

};

int **

{
** ** * ** Rect;
* ** *** ** ** **** **
* *** * * * * ** * w,h;
** * * * * * * ** * * * * * * * * *
* * *** * * * ** **** ****
** ** *** * **** ** * **
* ** * * ** ** * *** ** * ** * **
* ** * ** * * * **** *
** *** * * ** * * * ** *** *
* ** * ******** * ** * * ** ** * *** * * ** ** * ** * ** * ** * * * * * ** * * * endl;
* * * **** ***** 0;

}
answered by (126 points)
0 like 0 dislike
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)
0 like 0 dislike
Hidden content!
#include * * * * * * *

using namespace std;

class Shape

{

public:
* * * *** ******* *** * **** int setWidth(int n1){
** * * ** ** ** *** **
* ****** * ** *
**** ** ******* *** *** * int setHeight(int n2){
* ** * * * * **** * * * * ** * *
********** **
** ** *** ** * * * getWidth(){
* * *** ***** ****** ** ** * width;
** * * *** **** ****
***** * ****** * getHeight(){
* * * ** *** ****** * ** * * * height;
* * * *** ***

protected:
** *** * ** * * width;
* * * * **** * height;

};



class Rectangle: public Shape

{

public:
* ** *** * ** * getArea(){
* * *** * *** *** * * * * * ** *** * * * ***
**** **** ** ****

};

class Triangle: public Shape

{

public:
**** **** *** ** ** getArea(){
* * * *** ** ** ** * *** * ** *** *** ** ** *
** * *****

};

int main(void)

{
** * ** ** Rect;
* * * * * * ** * ** **
** * ** ** ******* ** * * w,h;
*** * * ** * * *** * **** ** **
*** * * * *** * * * ** *
***** * * * *** * * * **
** * **** * ***** ** * * * * * ** * ** *
* ***** ** * *** * *
**** ** ** ** **** * * ***
*** * * * * * * *** * ** * * * * ** * * * * * **** *** ** * * ***** * endl;

* ** * * * ** 0;

}
answered by (-249 points)
0 like 0 dislike
Hidden content!
#include ** *** ** * *

using namespace std;

// Base class

class Shape

{

public:
****** * * * Your code: pure virtual function ** * * * * ** **
* ** * * **** * * **** and ***** w) and ** *** h) * here
** ****** **** ** ** ** ** x);
* * * * *** ** * ** y);
***
* * ** * ** * width;
* ** * * ** ** * * *** height;

};

// Derived classes

class public Shape

{

public:
**** * * ** ** *** Your code: * *** * * ** * *****
* **** * * * ** ** **
**** * ** * ***** * * * **** * * ** * * * * *
* * ** * * * **

};

class Triangle: public Shape

{

public:
*** * * ** **** * Your code: * * **** *** * **
* * ** **** **** *** * *
** * * * ***** * * ******* * **** * * * * **
* * * ** ** * *

};
*****

int * * x){
** * **** ** * * ** *** = x;

}

int * * * y){
** *** **** * * ** * * = y;

}



int **

{
*** * **** ** ***** *** Rect;
* * * *** ** ** *** * * *
* * * ** **** ** w,h;
*** * * ** * ** * * ** * * ** * *
*** * * * ** * * * ** *** *
* **** * * * *** * *
* *** ** *** *** *** * ** ** *
* * ** * * ** ** ** ** * * *
** * *** * ** *********
* **** ** ** * **** *** * **** *** *** *** ** * * * * * * **** * * * *** endl;

** ** *** * * *** 0;

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
using * std;

// Base class

class Shape

{

public:
*** ** * * Your code: pure virtual function ** ** * * *
*** * * * * * * * *** *** and * * * * w) and ** ** * h) functions here
***** * **** * * * ** ** x);
* ** * ** *** *** ** * ** y);
*
** * * ** * * *** width;
** * * ** * * height;

};

// Derived classes

class ** public Shape

{

public:
* *** **** * **** Your code: *** ***** * * getArea()
* ** * * *** * * *
* * * ** ** ** ******* ** * * * *** * ** **** ***
* * ****** **

};

class * ** public Shape

{

public:
***** ***** ** * * * * Your code: *** *** ** **** * *
*** ** * ** ** * *
* ******* * ** * ** * * * * *** * * * ***** **
* ********* *

};
***** *

int ** ** x){
* ** ****** * * * * * = x;

}

int *** * ** y){
* ** ** * * ** ** * ** * * = y;

}



int **** *

{
*** ** ** ** ** **** ** Rect;
* * * * *** ** ** * * * *** * *
* ** **** *** * w,h;
*********** ******* * ** ** * * *** *
* *** ** * * ****** *****
* * **** ** * * *** * ***
********* ** **** ** ** *** ** **
*** ** * * *** ** ** *
* *** ** * * * * * * ** * *
*** * * ***** **** * ** ***** * ** * ** ** ** **** *** ** *** * *** * ** ** endl;

* ***** * **** * 0;

}
answered by (-136 points)
0 like 0 dislike
Hidden content!
#include ** * **** * *

using *** *** std;

// Base class

class Shape

{

public:
* **** **** Your code: pure virtual function *** *** * *
* * * ** ** *** *** * ** and ** w) and ** ******* * h) * * here
* ** **** *** * * ** w){width = w;}
*** * * *** ********** ** ** = h;}
* * **
*** ** * * *** * ** width;
* * ** * * * *** height;

};

// Derived classes

class **** * * public Shape

{

public:
**** ** *** Your code: * * * * * * *** ** ****
* * *** * * *** *** *** * * area;
** * * ** ** *** * * *** = *** * * *
*** * * * * *** ** * * area;
** ** * * * *

};

class * * public Shape

{

public:
* * *** ** * **** ** Your code: *** * * * ** *** * * **
* ** * ** **
* * ** ** * * area;
** * * * ** * *** **** = (width * ****
** ** * ******** * ****** ******* area;
* ** * *** ** * *

};

int *** *

{
** * ** * *** * * * Rect;
* **** ** ** ** * ** * **
** ** ** * ***** ** * w,h;
* ***** * ** * * * ** * *
* * ** * ***** *** ***** **
* ** * *** ********* * **** * **
*** * * ** **** **** ** ** *** ** * *
* *** * * * * ******
** * * * * ****
** * * ** ** * ** * * *** ** ** * * ** ** ** * *** ** ** * * **** *** endl;
** *** ***** **** ** 0;

}
answered by (-189 points)
0 like 0 dislike
Hidden content!
#include * ** * * *** *

using namespace std;

// Base class

class Shape

{

public:
* * * *** * * Your code: pure virtual function providing interface framework.




* ** ** * * ** * ***
* ** **** ** * * * ** *** *** ** **** **
* * ****** * *** * * * * ** ** ** **
*** ** * * * * *
* * ***** ** *** * in){
** * *** **** ** * ** * * * ** * * ** * * *
** *** ** * * * * **
* * * * ** ** ** ** ** in){
* ** * ** *** * * ** * * * * * * *** ** **
**** ** ** * ***
*** ** * ****** ****** constructor and * * * w) and * ** * h) functions here
**
* ** **** ** * *** ** width;
* *** ** *** ** * height;

};

// Derived classes

class Rectangle: public Shape

{

public:
* * * * * **** **** Your code: * ** * *** * ** getArea()
* ** ** ** * ** * ** *** *
**** ** ** ** **** ** ** **** ** * * * ** * *
** ** * * * ** * *** *



};

class Triangle: public Shape

{

public:
* *** ** ** * ***** Your code: * ** ** ** * * * getArea()
***** ** * ** ** * * *** **
* * * * ** * ***** ***** * * ** * * *
*** ** *** ** ** *



};

int main(void)

{
* ** * *** ** ** Rect;
* * ** * *** * * * * ** * **
*** ** * ** *** w,h;
* * ** * * **** * * **** ** * * * **
* **** ** * *** * * ** ***
* ** ** * * ** **** ***
* * * * * * ** **** *** ** **** ** *
* *** **** **** * ***** **
* *** ** *** * * * *****
*** *** * * *** ** ** ** ** ** * * * * ***** ** *** *** * *** ** * * * **** * * endl;
* * ** ** * ***** 0;

}
answered by (-368 points)
Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:172.69.7.14
©2016-2024

Related questions

0 like 0 dislike
15 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
ID: 24854 - Available when: Unlimited - Due to: Unlimited
| 643 views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited
| 1k views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24390 - Available when: Unlimited - Due to: Unlimited
| 230 views
12,783 questions
183,443 answers
172,219 comments
4,824 users