0 like 0 dislike

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++
Available when: Unlimited - Due to: Unlimited
| 35 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)
Get it on Google Play Welcome to Peer-Interaction Programming Learning System (PIPLS) LTLab, National DongHwa University
English 中文 Tiếng Việt
IP:162.158.79.71
©2016-2019

Related questions

0 like 0 dislike
15 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
Available when: Unlimited - Due to: Unlimited
| 38 views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
Available when: Unlimited - Due to: Unlimited
| 74 views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
Available when: Unlimited - Due to: Unlimited
| 24 views
8,559 questions
68,453 answers
43,098 comments
1,650 users