0 like 0 dislike
633 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
| 633 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:172.71.254.237
©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
| 547 views
0 like 0 dislike
27 answers
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24389 - Available when: Unlimited - Due to: Unlimited
| 924 views
0 like 0 dislike
1 answer
[Exercise] Coding (C) - asked Apr 27, 2017 in C++
ID: 24390 - Available when: Unlimited - Due to: Unlimited
| 215 views
12,783 questions
183,443 answers
172,219 comments
4,824 users