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What is the difference between functionality and implementation details in abstraction? [on hold]

Abstraction VS Information Hiding VS EncapsulationHow does abstraction helps in hiding the implementation details in Java?Differences between HashMap and Hashtable?What is the difference between @staticmethod and @classmethod?What's the difference between a method and a function?What is the difference between public, protected, package-private and private in Java?What is the difference between an abstract function and a virtual function?Understanding Python super() with __init__() methodsInterface vs Abstract Class (general OO)What is the difference between an interface and abstract class?What is a JavaBean exactly?How should I have explained the difference between an Interface and an Abstract class?

6

0

I'm learning about OOP and Java, and the definition of Abstraction is the process of hiding the implementation details from the user, only the functionality will be provided to the user.

Can someone explain me what is the difference between functionality and implementation details?

java oop abstraction

share|improve this question

asked 2 hours ago

gabygaby

3989

put on hold as too broad by Stultuske, Lino, Nicholas K, BIBIN K ONANKUNJU, U9-Forward 6 mins ago

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How does abstraction helps in hiding the implementation details in Java?
  
  – Lino
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Maybe even better dupe: stackoverflow.com/questions/24626/…
  
  – Lino
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Don't think too much about these definitions. "abstraction", "details" and "functionality" are used because they still have their ordinary meaning you'll find in a dictionary. There's no exact meaning in programming for them. It's a concept that has slightly different meaning to everyone. What people try to say with "abstraction" is that you don't go into details (like what kind of for/while loop you'll use), you keep it at a conceptual level. An "implementation detail" is always whatever you feel is too much detail to describe the concept. The same thing might be a concept in other places.
  
  – zapl
  1 hour ago
  
  
  

  
  
  
  

add a comment | 

6

0

I'm learning about OOP and Java, and the definition of Abstraction is the process of hiding the implementation details from the user, only the functionality will be provided to the user.

Can someone explain me what is the difference between functionality and implementation details?

java oop abstraction

share|improve this question

asked 2 hours ago

gabygaby

3989

put on hold as too broad by Stultuske, Lino, Nicholas K, BIBIN K ONANKUNJU, U9-Forward 6 mins ago

Please edit the question to limit it to a specific problem with enough detail to identify an adequate answer. Avoid asking multiple distinct questions at once. See the How to Ask page for help clarifying this question. If this question can be reworded to fit the rules in the help center, please edit the question.

• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Possible duplicate of How does abstraction helps in hiding the implementation details in Java?
  
  – Lino
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Maybe even better dupe: stackoverflow.com/questions/24626/…
  
  – Lino
  2 hours ago
  

  
  
  
  


• 
  
  
  

  
  

  
  
  
  
  
  

  
  
  Don't think too much about these definitions. "abstraction", "details" and "functionality" are used because they still have their ordinary meaning you'll find in a dictionary. There's no exact meaning in programming for them. It's a concept that has slightly different meaning to everyone. What people try to say with "abstraction" is that you don't go into details (like what kind of for/while loop you'll use), you keep it at a conceptual level. An "implementation detail" is always whatever you feel is too much detail to describe the concept. The same thing might be a concept in other places.
  
  – zapl
  1 hour ago
  
  
  

  
  
  
  

add a comment | 

I'm learning about OOP and Java, and the definition of Abstraction is the process of hiding the implementation details from the user, only the functionality will be provided to the user.

Can someone explain me what is the difference between functionality and implementation details?

java oop abstraction

share|improve this question

asked 2 hours ago

gabygaby

3989

share|improve this question

asked 2 hours ago

gabygaby

3989

share|improve this question

asked 2 hours ago

gabygaby

3989

asked 2 hours ago

gabygaby

3989

asked 2 hours ago

gabygaby

3989

5 Answers
5

active

oldest

votes

12

Real world example: Think of a gear box, the user only have the ability to change gears and that is the functionality.

The mechanism behind the gearbox and how the gear box is working internally is the implementation and the implementation is hidden from the user.

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Fakhar Ahmad RasulFakhar Ahmad Rasul

547411

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Nice example, worth the tenth vote ... and the badge that should be coming with it ;-)
  
  – GhostCat
  1 hour ago
  

  
  
  
  

add a comment | 

6

A good example is the Java List interface.

That provides methods to dynamically add or remove elements to the list. That is the function. How that really happens is not expressed in that interface, and for users of that List interface, it also doesn't matter (too much).

For example, the implementation could be a doubly linked list, where you just change the "links" between the objects in your list, or if an array is used that needs to grow/shrink accordingly, that is up to the implementation) Of course, there are actual pros and cons for the different implementation options, but in many situations, you might decide to not care about them.

share|improve this answer

edited 1 hour ago

answered 2 hours ago

GhostCatGhostCat

92.1k1688147

add a comment | 

3

Functionnality : What it does

Implementation : How it does it

share|improve this answer

answered 2 hours ago

vincrichaudvincrichaud

1,723924

add a comment | 

2

Encapsulation: wrapping up of data into a single unit.single unit(class). within a class, there are members, data members which wrapped in a unit called class.
For example, your bag is a single unit you put books, pens inside the bag. The same class is a single unit.

Resources for Encapsulation:

• https://javatutorial.net/java-encapsulation-example


• https://www.w3schools.com/java/java_encapsulation.asp

Abstraction: hiding the background details. OOP provides these facilities. we can keep data inside the objects which provide security. The class also provide this facility you cannot access private data of the class. Only public, protected data can be accessible if you want to secure your data when you make it private.

Resources for Abstraction:

• https://javatutorial.net/java-abstraction-example


• https://www.edureka.co/blog/java-abstraction/

I hope that I helped you!

share|improve this answer

edited 1 hour ago

answered 2 hours ago

dpapdpap

1,1311624

add a comment | 

1

To put it simply, consider the code below:

public Data getStoredData(int ID) {

    DBConnection conn = DBConnection.getInstance();

    conn.connect();



    Data data = conn.query("..." + ID);



    if(data != null) {

        data.setSomeValue('Some Value');

    }



    return data;

}

The term implementation details are the code you write inside your function.

The term functionality it the method signature or the things you want to expose to the calling client. This is how you want your method to be used.

---

In the example above, the functionality is this public Data getStoredData(int ID), while your implementation is the one that resides inside it.

share|improve this answer

answered 2 hours ago

arjayosmaarjayosma

331212

add a comment | 

12

Real world example: Think of a gear box, the user only have the ability to change gears and that is the functionality.

The mechanism behind the gearbox and how the gear box is working internally is the implementation and the implementation is hidden from the user.

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Fakhar Ahmad RasulFakhar Ahmad Rasul

547411

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Nice example, worth the tenth vote ... and the badge that should be coming with it ;-)
  
  – GhostCat
  1 hour ago
  

  
  
  
  

add a comment | 

12

Real world example: Think of a gear box, the user only have the ability to change gears and that is the functionality.

The mechanism behind the gearbox and how the gear box is working internally is the implementation and the implementation is hidden from the user.

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Fakhar Ahmad RasulFakhar Ahmad Rasul

547411

• 
  
  
  

  
  1
  

  
  
  
  
  
  

  
  
  Nice example, worth the tenth vote ... and the badge that should be coming with it ;-)
  
  – GhostCat
  1 hour ago
  

  
  
  
  

add a comment | 

Real world example: Think of a gear box, the user only have the ability to change gears and that is the functionality.

The mechanism behind the gearbox and how the gear box is working internally is the implementation and the implementation is hidden from the user.

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Fakhar Ahmad RasulFakhar Ahmad Rasul

547411

share|improve this answer

edited 2 hours ago

answered 2 hours ago

Fakhar Ahmad RasulFakhar Ahmad Rasul

547411

answered 2 hours ago

Fakhar Ahmad RasulFakhar Ahmad Rasul

547411

answered 2 hours ago

Fakhar Ahmad RasulFakhar Ahmad Rasul

547411

6

A good example is the Java List interface.

That provides methods to dynamically add or remove elements to the list. That is the function. How that really happens is not expressed in that interface, and for users of that List interface, it also doesn't matter (too much).

For example, the implementation could be a doubly linked list, where you just change the "links" between the objects in your list, or if an array is used that needs to grow/shrink accordingly, that is up to the implementation) Of course, there are actual pros and cons for the different implementation options, but in many situations, you might decide to not care about them.

share|improve this answer

edited 1 hour ago

answered 2 hours ago

GhostCatGhostCat

92.1k1688147

add a comment | 

6

A good example is the Java List interface.

That provides methods to dynamically add or remove elements to the list. That is the function. How that really happens is not expressed in that interface, and for users of that List interface, it also doesn't matter (too much).

For example, the implementation could be a doubly linked list, where you just change the "links" between the objects in your list, or if an array is used that needs to grow/shrink accordingly, that is up to the implementation) Of course, there are actual pros and cons for the different implementation options, but in many situations, you might decide to not care about them.

share|improve this answer

edited 1 hour ago

answered 2 hours ago

GhostCatGhostCat

92.1k1688147

add a comment | 

A good example is the Java List interface.

That provides methods to dynamically add or remove elements to the list. That is the function. How that really happens is not expressed in that interface, and for users of that List interface, it also doesn't matter (too much).

For example, the implementation could be a doubly linked list, where you just change the "links" between the objects in your list, or if an array is used that needs to grow/shrink accordingly, that is up to the implementation) Of course, there are actual pros and cons for the different implementation options, but in many situations, you might decide to not care about them.

share|improve this answer

edited 1 hour ago

answered 2 hours ago

GhostCatGhostCat

92.1k1688147

share|improve this answer

edited 1 hour ago

answered 2 hours ago

GhostCatGhostCat

92.1k1688147

answered 2 hours ago

GhostCatGhostCat

92.1k1688147

answered 2 hours ago

GhostCatGhostCat

92.1k1688147

3

Functionnality : What it does

Implementation : How it does it

share|improve this answer

answered 2 hours ago

vincrichaudvincrichaud

1,723924

add a comment | 

3

Functionnality : What it does

Implementation : How it does it

share|improve this answer

answered 2 hours ago

vincrichaudvincrichaud

1,723924

add a comment | 

Functionnality : What it does

Implementation : How it does it

share|improve this answer

answered 2 hours ago

vincrichaudvincrichaud

1,723924

share|improve this answer

answered 2 hours ago

vincrichaudvincrichaud

1,723924

answered 2 hours ago

vincrichaudvincrichaud

1,723924

answered 2 hours ago

vincrichaudvincrichaud

1,723924

2

Encapsulation: wrapping up of data into a single unit.single unit(class). within a class, there are members, data members which wrapped in a unit called class.
For example, your bag is a single unit you put books, pens inside the bag. The same class is a single unit.

Resources for Encapsulation:

• https://javatutorial.net/java-encapsulation-example


• https://www.w3schools.com/java/java_encapsulation.asp

Abstraction: hiding the background details. OOP provides these facilities. we can keep data inside the objects which provide security. The class also provide this facility you cannot access private data of the class. Only public, protected data can be accessible if you want to secure your data when you make it private.

Resources for Abstraction:

• https://javatutorial.net/java-abstraction-example


• https://www.edureka.co/blog/java-abstraction/

I hope that I helped you!

share|improve this answer

edited 1 hour ago

answered 2 hours ago

dpapdpap

1,1311624

add a comment | 

2

Encapsulation: wrapping up of data into a single unit.single unit(class). within a class, there are members, data members which wrapped in a unit called class.
For example, your bag is a single unit you put books, pens inside the bag. The same class is a single unit.

Resources for Encapsulation:

• https://javatutorial.net/java-encapsulation-example


• https://www.w3schools.com/java/java_encapsulation.asp

Abstraction: hiding the background details. OOP provides these facilities. we can keep data inside the objects which provide security. The class also provide this facility you cannot access private data of the class. Only public, protected data can be accessible if you want to secure your data when you make it private.

Resources for Abstraction:

• https://javatutorial.net/java-abstraction-example


• https://www.edureka.co/blog/java-abstraction/

I hope that I helped you!

share|improve this answer

edited 1 hour ago

answered 2 hours ago

dpapdpap

1,1311624

add a comment | 

Encapsulation: wrapping up of data into a single unit.single unit(class). within a class, there are members, data members which wrapped in a unit called class.
For example, your bag is a single unit you put books, pens inside the bag. The same class is a single unit.

Resources for Encapsulation:

• https://javatutorial.net/java-encapsulation-example


• https://www.w3schools.com/java/java_encapsulation.asp

Abstraction: hiding the background details. OOP provides these facilities. we can keep data inside the objects which provide security. The class also provide this facility you cannot access private data of the class. Only public, protected data can be accessible if you want to secure your data when you make it private.

Resources for Abstraction:

• https://javatutorial.net/java-abstraction-example


• https://www.edureka.co/blog/java-abstraction/

I hope that I helped you!

share|improve this answer

edited 1 hour ago

answered 2 hours ago

dpapdpap

1,1311624

share|improve this answer

edited 1 hour ago

answered 2 hours ago

dpapdpap

1,1311624

answered 2 hours ago

dpapdpap

1,1311624

answered 2 hours ago

dpapdpap

1,1311624

1

To put it simply, consider the code below:

public Data getStoredData(int ID) {

    DBConnection conn = DBConnection.getInstance();

    conn.connect();



    Data data = conn.query("..." + ID);



    if(data != null) {

        data.setSomeValue('Some Value');

    }



    return data;

}

The term implementation details are the code you write inside your function.

The term functionality it the method signature or the things you want to expose to the calling client. This is how you want your method to be used.

---

In the example above, the functionality is this public Data getStoredData(int ID), while your implementation is the one that resides inside it.

share|improve this answer

answered 2 hours ago

arjayosmaarjayosma

331212

add a comment | 

1

To put it simply, consider the code below:

public Data getStoredData(int ID) {

    DBConnection conn = DBConnection.getInstance();

    conn.connect();



    Data data = conn.query("..." + ID);



    if(data != null) {

        data.setSomeValue('Some Value');

    }



    return data;

}

The term implementation details are the code you write inside your function.

The term functionality it the method signature or the things you want to expose to the calling client. This is how you want your method to be used.

---

In the example above, the functionality is this public Data getStoredData(int ID), while your implementation is the one that resides inside it.

share|improve this answer

answered 2 hours ago

arjayosmaarjayosma

331212

add a comment | 

To put it simply, consider the code below:

public Data getStoredData(int ID) {

    DBConnection conn = DBConnection.getInstance();

    conn.connect();



    Data data = conn.query("..." + ID);



    if(data != null) {

        data.setSomeValue('Some Value');

    }



    return data;

}

The term implementation details are the code you write inside your function.

The term functionality it the method signature or the things you want to expose to the calling client. This is how you want your method to be used.

---

In the example above, the functionality is this public Data getStoredData(int ID), while your implementation is the one that resides inside it.

share|improve this answer

answered 2 hours ago

arjayosmaarjayosma

331212

public Data getStoredData(int ID) {

    DBConnection conn = DBConnection.getInstance();

    conn.connect();



    Data data = conn.query("..." + ID);



    if(data != null) {

        data.setSomeValue('Some Value');

    }



    return data;

}

share|improve this answer

answered 2 hours ago

arjayosmaarjayosma

331212

answered 2 hours ago

arjayosmaarjayosma

331212

answered 2 hours ago

arjayosmaarjayosma

331212