0 like 0 dislike
654 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
| 654 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:172.70.100.222
©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
| 613 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
| 227 views
12,783 questions
183,443 answers
172,219 comments
4,824 users