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What is the diff between interface and abstract class and when u go for interface ,abstract class
java
0 Voto
2 Respostas
22nd Nov 2016, 5:21 PM
pavan
Did anybody implement Binary Search tree as map Abstract data type in c or is that on any book? Could you share on this post
adt
binary_search_tree
bst
c
map
4 Votos
1 Resposta
6th Sep 2019, 1:22 PM
Zhenis Otarbay
What is benefit of abstract class and interface in program ? Can i write a program without them ? Thanks
abstract-classes
interfaces
java
0 Voto
3 Respostas
5th Aug 2018, 3:04 AM
Dimas Chandra
what is the need of abstract classes/interfaces if they contain no information or any description of any methods?
abstract-classes
abstract-methods
c#
c++
inheritance
interfaces
java
0 Voto
2 Respostas
15th Jan 2018, 3:17 PM
Atanu Sarkar
Why does this give error?
abstract
abstract-classes
error
java
0 Voto
3 Respostas
24th Dec 2018, 8:13 PM
salar vahidi
Their way of teaching is introducing abstract words with no practical activity.. I mean real world stuff, not just some words.
code
learning
real
stuff
teaching
the
world
0 Voto
4 Respostas
31st Oct 2017, 7:13 PM
Rana Rawan
C# Course - Drawing Application Issue
abstract
c#
inhertiance
interface
1 Voto
2 Respostas
12th Aug 2022, 4:28 PM
John D4
whats the use of all of this?
abstract
c#
differance
intrface
virtual
4 Votos
2 Respostas
26th Jun 2020, 4:34 PM
Michael
What is the use of interface concept in oops ,what are the differences among interface,inheritance and abstract class in Java ?
,absract
,inheritance
interface
2 Votos
2 Respostas
25th Aug 2017, 6:18 PM
Sowmya Reddy
what is exact abstract class in php, and the difference between other declaration like static, protected and private?
php
0 Voto
1 Resposta
8th Jan 2018, 11:53 AM
tess hsu
Although we have a default protected constructor in abstract class , why we can't create a new instance from it?
abstract-classes
c#
oop
1 Voto
2 Respostas
2nd Aug 2017, 4:01 PM
Amin Saadati
17.1 why do we need a abstract void were you can call the and just make the void with the same names.
abstract-classes
abstract-methods
1 Voto
1 Resposta
23rd Dec 2020, 5:27 AM
Crazy games
Can anyone help me with this error?
abstract
java
method
oops
0 Voto
2 Respostas
15th Oct 2022, 6:46 AM
SUKHBEER SINGH
Default Implementation in interfaces
abstract
c#
csharp
default
help
interfaces
3 Votos
6 Respostas
7th May 2021, 2:38 PM
Shubham Yadav
Tried to solve the test for abstract classes in Java course. My Code fails in hidden test case #3 and i dont know why.
java
1 Voto
2 Respostas
22nd May 2021, 9:04 PM
Tom
We know that we cannot instantiate/ make object of abstract class and interfaces...but what is the reason behind this???
abstract-classes
java
0 Voto
2 Respostas
25th Jan 2017, 3:53 PM
ayush
Can you help me explain abstract for java in the simplest way? Until the moment I don't understand it, even though I tried.
java
0 Voto
3 Respostas
19th Jul 2018, 7:40 AM
Ibrahim Kadri
Polymorphism
abstract
c#
interfaces
virtual
0 Voto
2 Respostas
23rd Mar 2017, 4:30 PM
Amir Hossein Karimi
What's the point of having abstract class if anyway we have to declare and define the method again in the inheriting class ?
interfaces
java
1 Voto
2 Respostas
5th Mar 2017, 8:29 PM
Shubham Agrawal
How can the subclass override a concrete method of the superclass and declare it as abstract?
abstract
class
java
subclass
superclass
1 Voto
2 Respostas
7th Mar 2020, 11:13 AM
D ̲E ̲S ̲S ̲I ̲E ̲- ̲B ̲A ̲H ̲I ̲R ̲U ̲
Can I declare members in abstract class? Should I declare a virtual getter / setter method for the member in that class?
abstract-classes
c++
virtual
0 Voto
2 Respostas
23rd Nov 2016, 1:46 PM
Marcell Juhasz
So the only difference between interface and an abstract class is that you can't encapsulate them and can't use properties in them?
c#
interfaces
0 Voto
2 Respostas
3rd May 2016, 5:51 PM
Tomasz Grochowski
whats the use of all of this?
abstract
c#
differance
intrface
virtual
1 Voto
1 Resposta
26th Jun 2020, 4:33 PM
Michael
java terminology help: I was doing a java code in eclipse and it says to add keyword 'abstract' to base class
abstract
abstract-classes
definition
help
java
0 Voto
2 Respostas
9th Dec 2018, 6:42 PM
mya
We are told that an abstract method is a method that is declared without an implementation. What is an implementation, and how does this method look like exactly ?
abstract-classes
java
0 Voto
3 Respostas
2nd Dec 2016, 2:36 PM
Aka
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 ??
abstract-classes
java
0 Voto
2 Respostas
5th Jun 2017, 2:18 PM
Valeria Lopez Lizarraga
Fill in the blanks that define an abstract Animal class and a dog class that inherits from it. class Animal{ public: virtual void bark()=___; }; class Dog __ Animal{ public: _____bark(){ cout<<"Woof!"; } };
c++
1 Voto
2 Respostas
2nd Sep 2016, 4:25 PM
Soutik
[Java] Can we create an instance of a static class?
abstract
challenge
class
created
final
instance
interface
java
object
static
3 Votos
4 Respostas
2nd Apr 2018, 9:57 AM
Steinchr der Wahre
What does Object Oriented Programming actually means?
abstract
access-modifiers
basics
classes
encapsulation
interfaces
objects
oop
0 Voto
3 Respostas
13th Aug 2017, 2:48 PM
Bhawani Shankar Bharti
I made an abstract class and three subclasses of that class.When I override toString method, I want to return the values of variable of subclass(from toString method) and not the superclass.But it gives the value of superclass.What to do??
java
0 Voto
2 Respostas
30th Aug 2016, 5:47 PM
Raj Joshi
What is garbage collection in C++?
abstract
array
c++
class
collection
garbage
inheritance
polymorphism
1 Voto
1 Resposta
23rd Jul 2017, 4:54 PM
Umar Farouq Yusuf
Are there any good class examples i can look at?
abstract
implement
inheritance
instance
java
nested
static
subclass
superclass
1 Voto
1 Resposta
7th Sep 2017, 8:59 AM
D_Stark
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