Q&A Discussions

When and why do we use abstract classes or interfaces?

27th Jun 2016, 3:30 PM

Raghab Pokhrel

3 Votes

What is the difference between abstract and interface in Java ?

1st May 2019, 1:40 PM

VV.

abstract-classes basics interfaces java

7 Votes

6 Answers

30th Apr 2019, 1:49 AM

suvam prasad

Can you please explain how to use an abstract class because i cannot initialize it.

0 Votes

Can we have arrays of an abstract class??

2nd Jun 2017, 4:29 AM

DoubleVermine

abstract-classes arrays

0 Votes

what is the difference between abstract classes and interface?

21st Aug 2017, 6:22 AM

Vikram Sah

2 Votes

Interface or abstract class

27th Sep 2016, 2:42 PM

Meher jeet

abstract-classes interface java

5 Votes

Guys who can explain more about abstraction?

5th Apr 2020, 3:47 PM

Dhafer ABDELKADER

1 Vote

Hi! I'm a bit confused. So why to use abstract despite of virtual?

24th Aug 2016, 8:58 PM

Thoriso Seitatolo

1 Vote

14th Apr 2016, 6:09 AM

Andrei David

What is abstract class?

1 Vote

Difference between interface and abstract.

9th Aug 2016, 4:45 PM

RINO

abstract-classes c#interfaces

1 Vote

can someone tell me how to use abstract class and not how to make them please

18th Nov 2016, 7:07 AM

Jai Verma

1 Vote

What is the difference between abstract class and interface?

2nd Jun 2017, 4:32 AM

DoubleVermine

Importance of pure virtual destructor

4 Votes

5 Answers

10th Dec 2016, 1:44 PM

Smit Shah

abstract-classes c++destructor pure_virtual

6 Votes

Can anyone help me i want created App Android

15th Sep 2018, 3:46 PM

Ketan Lalcheta

abstract-classes so

1 Vote

Why abstract classes are used??

5th Jul 2019, 1:36 PM

Abdallah Ahmed

abstract-classes classes inheritance

2 Votes

what does it mean that a pure virtual function has no body?

23rd Mar 2018, 1:55 PM

Akshay Karande

2 Votes

29th Jun 2017, 8:49 PM

koala 🐨

Question on Abstraction

1 Vote

Please help me!!! I'm stuck in the abstract classes

9th May 2017, 2:45 PM

Kaien Yang

abstract-classes java oop

1 Vote

29th Aug 2021, 7:40 AM

Remus Tanasa

abstractions??

0 Votes

What is main difference between abstract class and interface in java?

19th Jan 2017, 5:27 PM

Layla A Hammoury

abstract-classes interfaces

0 Votes

We know that we cannot instantiate/ make object of abstract class and interfaces...but what is the reason behind this???

28th Aug 2017, 3:29 PM

Swetha Srilakshmi

0 Votes

So ABSTRACT classes are like EXAMPLE?

25th Jan 2017, 3:53 PM

ayush

0 Votes

Why is Abstract class useful?

13th Feb 2017, 2:21 PM

Nochains

0 Votes

9th Apr 2016, 5:53 PM

Abhishek Jain

Abstract vs Constructor

0 Votes

Can we make abstract method with in normal class?

14th Jan 2017, 4:30 PM

Ashish Kumar Singh

0 Votes

26th Apr 2016, 6:49 PM

Asfandyar khan

Interface vs Abstract

1 Vote

So "virtual void attack() = 0" = "virtual void attack(){}"?

14th Jan 2017, 4:34 PM

Ashish Kumar Singh

0 Votes

Lets say i want to use methods of an abstract class, is there any way i can do it without overriding one of its methods ??

5th Jan 2016, 2:18 AM

Yangmo Zhu

0 Votes

Why do I need to define an abstract class/method

5th Jun 2017, 2:18 PM

Valeria Lopez Lizarraga

0 Votes

24th Sep 2017, 4:39 PM

Olawumi Qauzeem Yusuff

Why to use abstract???

0 Votes

Abstract functions can only appear in an abstract class.

4th Jan 2017, 7:52 AM

Mohd Kaleem Khan

abstract-classes inheritance php

3 Votes

What is abstraction in programming?

9th Sep 2020, 10:22 AM

Sajib Adhikary

1 Vote

what is real time & programming example of abstract class.

7th Jul 2017, 8:48 AM

Vishnu Vardhan Sistla

0 Votes

Can anyone tell the difference between abstract class and an Interface in Java??

25th Feb 2019, 8:35 AM

chiranjiv prajapati

What is the use of pure virtual class?

2 Votes

4 Answers

27th Feb 2018, 2:35 AM

Vinayak Hegde

1 Vote

what's the different between the abstract and virtual ?

9th May 2017, 2:41 PM

Bilal Abbas

0 Votes

20th Oct 2016, 10:37 AM

Badar Adam

Java Based Question

0 Votes

Wat is the difference between interface and abstract in java

17th Jan 2018, 2:35 PM

Abram Mokgethi

abstract-classes interfaces

0 Votes

What are the uses of abstract class?

25th Dec 2016, 6:52 AM

chockalingam

0 Votes

What is the point of having an abstract class?

31st Jul 2016, 5:40 PM

Ganesh SM

0 Votes

In the program of the life, there is a class House, what are some methods or properties of it?

26th Jul 2016, 12:55 PM

Dale McGorman

0 Votes

Abstract classes can not be instantiated, but does it have constructor?

29th Jun 2016, 7:20 PM

Garme Kain

0 Votes

How is this different from simply creating the behavior in the class itself?

13th Jun 2017, 5:54 PM

Kundan

0 Votes

Can abstract classes have static and final methods?

4th Dec 2016, 2:43 AM

Skyler Joe Boles

1 Vote

Difference between Abstract and protected?

28th Apr 2016, 3:50 PM

Neelesh I

abstract abstract-classes java protected

2 Votes

10 Answers

25th Dec 2016, 5:09 PM

Deep chand

Are C++'s pure virtual functions basically Java's abstract methods?

abstract-classes c++java

2 Votes

What is the difference between abstract class and interface in java?

11th Aug 2023, 6:07 PM

Hrvoje Kožul

abstract-classes classes implementation interfaces java

15 Votes

6 Answers

2nd Mar 2017, 11:13 PM

‎‏‎‏‎Joe

Lesson 56 ,Java ,Shape , test 3 failure

abstract-classes java math

0 Votes

C# abstract class vs interfaces

15th Apr 2022, 6:01 PM

Krishna Pal Sendhav

abstract-classes c#interfaces

2 Votes