Q&A Discussions

Whats the difference between abstract class and interface?

29th Mar 2018, 9:25 AM

Bagatur Zhamkochyan

2 Votes

Hi, do anyone knows how to use complex classes and object?

13th Apr 2016, 5:42 PM

Venkata Bodapati

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0 Votes

Whats the key difference btwn Data encapsulation and Data abstraction ?

21st Mar 2019, 10:22 PM

Killia Nguyen

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6 Votes

10 Answers

27th Jun 2017, 5:59 PM

Rose

Purpose of Abstract?

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1 Vote

5 Answers

17th Dec 2022, 9:55 PM

William Owens

Need help with java abstract class lesson

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3 Votes

Found a question, can anyone help?

5th Mar 2023, 10:10 AM

Crazy Okon

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-1 Vote

What is abstraction in c# or in other languages?

11th Dec 2019, 4:56 AM

Ann Thomas

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4 Votes

What is the different between interfaces and abstract?

18th Mar 2017, 6:18 AM

Wilson Bol

0 Votes

What is the difference between ENCAPSULATION and ABSTRACTION????

27th Dec 2016, 8:11 PM

Amirul Naim

abstract-classes encapsulation java

1 Vote

Code doesn't give any output

28th Sep 2017, 1:36 PM

mithun

abstract-classes classes issue java

0 Votes

5 Answers

17th Sep 2019, 8:18 AM

Stasys Domarkas

Why we make abstracts class in c++???

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1 Vote

What is benefit of abstract class and interface in program ? Can i write a program without them ? Thanks

11th Oct 2019, 11:06 AM

Hussain Sahir

0 Votes

Java: getting error in line 15

5th Aug 2018, 3:04 AM

Dimas Chandra

abstract-classes fibonacci java

0 Votes

why i could not create new dog class and object like as cat class ?

2nd Aug 2022, 1:22 AM

Zane Vijay Falcao

1 Vote

26th Jan 2017, 6:31 PM

Feridun Subasi

abstract interface

0 Votes

Proyecto Sistema para equipos de fútbol java netbeans

11th Jan 2021, 5:12 PM

Manfred h

abstract-classes arraylist java jframe netbeans objetos

0 Votes

20 Answers

2nd Nov 2018, 3:10 PM

Priscila Rodríguez

how can i fix this? i need to set the type of animal and age of animal for every animal. look how i wrote the code, and please t

abstract-classes animal classes java

1 Vote

5 Answers

28th May 2020, 10:01 AM

Yahel

It seems there is a way to bypass the private tag...how can that happen?

abstract-classes c++virtual

2 Votes

Why can't we make objects of abstract Class?

27th Aug 2017, 6:08 AM

Aurora

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2 Votes

Code a program that adds 7 numbers and swap that numbers starting with the biggest number

15th Aug 2017, 11:25 AM

Krunal Gediya

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1 Vote

abstract class VS interface

12th Jan 2020, 7:25 AM

bosisi komane

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0 Votes

What is the difference between abstract class and interface in terms of implementation?

6th Aug 2022, 7:06 PM

‎Mr.Kaveh

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2 Votes

What's the diffrence between abstract classes and interfaces in java?

30th Aug 2018, 7:44 AM

Divyani Singh

2 Votes

Can an interface inherit an abstract class?Please explain me with reasons.

22nd Jul 2017, 5:12 AM

Viraj Singh

abstract-classes interface java oops

4 Votes

What is the difference between an abstract class and an interface?

9th Feb 2018, 5:23 PM

Vaibhav Tandon

1 Vote

What is the difference b/w interface and abstract class? We can do all the things in abstract class itself but why interface?

20th Aug 2017, 12:57 AM

Alexik

abstract-classes interface java

0 Votes

Why is an abstract class implementing a function

16th Mar 2019, 12:57 PM

Soma Venkata Sai Krishna

1 Vote

Although we have a default protected constructor in abstract class , why we can't create a new instance from it?

5th May 2017, 10:02 PM

tylerasa

abstract-classes c#oop

1 Vote

2nd Aug 2017, 4:01 PM

Amin Saadati

Need help at practice

1 Vote

What is Abstraction with detailed explanation and example program

19th Dec 2022, 3:57 PM

Darius

abstract-classes abstraction interfaces

2 Votes

Abstract classes and interfaces

9th Oct 2017, 2:12 PM

Saravanan.C

0 Votes

When we should use abstract class?

5th Aug 2018, 7:22 PM

Adam

abstract abstract-classes class java

2 Votes

Abstract class and interface

28th Nov 2018, 10:58 PM

Dina Noviana

abstract-classes java self-learning

2 Votes

Create an abstract class called "Animal" and four derived classes Cow, Horse, Tiger, and Lamb.

13th Aug 2017, 1:28 PM

Sam Miles

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-1 Vote

Inheritance of interface and abstract classes

20th Nov 2020, 12:14 PM

Something New

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1 Vote

Difference between abstract classes and interfaces

14th Mar 2019, 7:03 PM

Leon Rališ

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2 Votes

Difference between virtual and abstract

8th Apr 2018, 1:56 AM

Yusuf

abstract-classes c++java virtual

1 Vote

What is the output of this code ?plz explain step by step 🪜

3rd Nov 2016, 4:45 PM

Project Erebos

abstract-classes classes loops output pointers

-1 Vote

6 Answers

4th Mar 2021, 7:09 AM

Deepak Kumar

abstract

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0 Votes

Benefits of virtual destructor in abstract classes?

20th Jul 2016, 5:00 AM

Eli Brown

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2 Votes

Can I declare members in abstract class? Should I declare a virtual getter / setter method for the member in that class?

7th Nov 2016, 2:15 PM

Hector Sulbaran

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0 Votes

Why does this give error?

23rd Nov 2016, 1:46 PM

Marcell Juhasz

abstract abstract-classes error java

0 Votes

How can I use object array in java ??

24th Dec 2018, 8:13 PM

salar vahidi

abstract-classes array java object

0 Votes

I don't get how abstraction and encapsulation really hide data.

5th Mar 2020, 7:52 PM

Sourav Bhunia

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3 Votes

Are classes,objects important in c++

7th Nov 2016, 3:55 PM

Ramy Alayane

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0 Votes

Can someone gives examples on how to initialize abstract, interface and static classes?

26th Jan 2019, 2:44 AM

Mohamed Souhayl Hadimi

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0 Votes

Abstract class and Interface. Difference?

25th May 2017, 6:24 AM

DoubleVermine

1 Vote

What is the difference between encapsulation and data abstraction?

28th Dec 2016, 2:56 AM

Deep chand

abstract-classes encapsulation java

0 Votes

Why we create abstract method insted of normal method? At the first place

10th Jul 2016, 1:53 PM

Anoop E

abstract-classes codind java

0 Votes