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
| 116 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:162.158.79.215
©2016-2020

Related questions

0 like 0 dislike
15 answers
[Exercise] Coding (C) - asked Jun 1, 2017 in C++
Available when: Unlimited - Due to: Unlimited
| 104 views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
Available when: Unlimited - Due to: Unlimited
| 198 views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
Available when: Unlimited - Due to: Unlimited
| 72 views
9,614 questions
94,666 answers
76,330 comments
2,928 users