0 like 0 dislike
1.2k 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
| 1.2k 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:172.70.130.118
©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
| 1.2k views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited
| 1.8k views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24390 - Available when: Unlimited - Due to: Unlimited
| 381 views
12,783 questions
183,443 answers
172,219 comments
4,824 users