0 like 0 dislike
621 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
| 621 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:172.70.126.109
©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
| 538 views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited
| 895 views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24390 - Available when: Unlimited - Due to: Unlimited
| 212 views
12,783 questions
183,443 answers
172,219 comments
4,824 users