Q&A Discussions

0 Votes

Why is downcasting important?

9th Jul 2020, 5:04 PM

BELHANI Mohamed-Afif

abstract-classes java

0 Votes

Java - Plugin/Extension for application

10th Jun 2020, 1:35 PM

Dipesh Das

abstract-classes abstration addon android bytecode class classloader implement java plugin

1 Vote

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

5th Jun 2020, 8:17 AM

AA Shakil

abstract-classes animal classes java

1 Vote

Interface or abstract class

28th May 2020, 10:01 AM

Yahel

abstract-classes interface java

5 Votes

5th Apr 2020, 3:47 PM

Dhafer ABDELKADER

What is the meaning of!?

0 Votes

How can I use object array in java ??

29th Mar 2020, 5:40 PM

Mohamad Nour Alaref

abstract-classes array java object

0 Votes

Can a class implement multiple interfaces?

5th Mar 2020, 7:52 PM

Sourav Bhunia

abstract-classes interfaces

0 Votes

Which methods ConcreteClass needs too implements???

27th Feb 2020, 4:47 AM

gpatblount

abstract-classes inheritance interfaces java methods threads

2 Votes

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

5th Feb 2020, 5:21 PM

Erion Zabelaj

abstract-classes good include

1 Vote

Can someone please factorize these 2 classes with an abstract class ? And changing them accordingly?

12th Jan 2020, 7:25 AM

bosisi komane

abstract abstract-classes factorize java methods overriding

0 Votes

Found a question, can anyone help?

16th Dec 2019, 8:17 PM

AdL

abstract-classes classes interfaces java

-1 Vote

4 Answers

11th Dec 2019, 4:56 AM

Ann Thomas

Where is the difference between abstract Class and interface?

abstract-classes interfaces

2 Votes

Can I get a program to implement Queue data structure

8th Dec 2019, 3:34 AM

Nazmul Islam Naim

abstract-classes datastructure interfaces java queue reference

0 Votes

Write a c++ program that calculates roots of a quadratic equation

6th Nov 2019, 8:14 PM

Sahil P Gaonkar

-1 Vote

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

6th Nov 2019, 8:20 AM

Kenneth Mwangi

abstract-classes c++cpp oop

1 Vote

Code doesn't give any output

11th Oct 2019, 11:06 AM

Hussain Sahir

abstract-classes classes issue java

0 Votes

Can anyone explain me linked list implementation in c++

17th Sep 2019, 8:18 AM

Stasys Domarkas

abstract-classes c++linkedlist stack

0 Votes

Why are constructors allowed in an abstract classes if it cannot be instantiated?

21st Aug 2019, 3:28 PM

Pola Someshwar

abstract-classes c#constructors oop

1 Vote

Can anyone help me i want created App Android

14th Jul 2019, 12:25 PM

Rohan Rao

abstract-classes so

1 Vote

Abstract and Interface: -

5th Jul 2019, 1:36 PM

Abdallah Ahmed

abstract-classes interfaces java methods objects static

1 Vote

9th Jun 2019, 12:55 PM

Paras Jain

WHICH ONE ?

0 Votes

Java - Constructor in abstract classes

26th May 2019, 8:00 PM

Jnana

abstract-classes constructors java

5 Votes

When and why do we use abstract classes or interfaces?

4th May 2019, 8:00 AM

Paolo De Nictolis

abstract-classes interfaces java

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 we make a class having implemented methods as an abstract class!?

2 Votes

What is the benefit of using interfaces?

29th Apr 2019, 7:39 PM

Eshu Kamisetty

abstract-classes c#implementation inheritance interfaces

1 Vote

abstract classes and interfaces, what are the benefits of each one ?

12th Apr 2019, 6:10 PM

Jeremy Simmons

abstract-classes interfaces

0 Votes

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

28th Mar 2019, 1:07 PM

oualid hajane

abstract-classes classes objects

0 Votes

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

21st Mar 2019, 10:22 PM

Killia Nguyen

abstract-classes interface java

0 Votes

Inheritance of interface and abstract classes

16th Mar 2019, 12:57 PM

Soma Venkata Sai Krishna

abstract-classes classes inheritance interfaces

1 Vote

What is an abstract class?

14th Mar 2019, 7:03 PM

Leon Rališ

0 Votes

Is this a valid abstraction example ?

10th Mar 2019, 6:29 PM

Kabir singh

abstract-classes abstraction classes encapsulation java object-oriented-design objects oop

2 Votes

3rd Mar 2019, 12:39 PM

Sevcan Doğramacı

Please explain more

1 Vote

what is real time & programming example of abstract class.

28th Feb 2019, 5:30 PM

Adil Hussain

abstract-classes java

0 Votes

Why do we use abstract method when we can directly declare normally.i cant see the difference

25th Feb 2019, 8:35 AM

chiranjiv prajapati

0 Votes

Are classes,objects important in c++

12th Feb 2019, 11:30 PM

chanukya mahidhar

abstract-classes c++classes objects

0 Votes

Why does this give error?

26th Jan 2019, 2:44 AM

Mohamed Souhayl Hadimi

abstract abstract-classes error java

0 Votes

Whats is the benefit if we use enemy pointer to the type of it's inherited class ?

24th Dec 2018, 8:13 PM

salar vahidi

abstract-classes c++objects pointers polymorphism virtual

1 Vote

java terminology help: I was doing a java code in eclipse and it says to add keyword 'abstract' to base class

19th Dec 2018, 6:25 AM

Atik🇧🇩

abstract abstract-classes definition help java

0 Votes

What do you mean by abstract and data abstraction in c++

9th Dec 2018, 6:42 PM

mya

abstract abstract-classes polymorphism

2 Votes

When we should use abstract class?

6th Dec 2018, 12:50 PM

Satyendra Patel

abstract abstract-classes class java

2 Votes

Can you implement an abstact method without extending it class ?

28th Nov 2018, 10:58 PM

Dina Noviana

abstract-classes inheritance java

4 Votes

9 Answers

23rd Nov 2018, 8:26 PM

Mind To Machine 💻🕆

Fill in the blanks to create an abstract class with an abstract method and inherit from it. abstract class Animal { public int

What is the benefit of abstract class?

-11 Votes

11 Answers

18th Nov 2018, 12:30 PM

Louie Jay Gitgitin Salvaña

1 Vote

14th Nov 2018, 2:55 PM

Nazmul Islam Naim

What to do

0 Votes

Proyecto Sistema para equipos de fútbol java netbeans

13th Nov 2018, 5:17 AM

Kensi

abstract-classes arraylist java jframe netbeans objetos

0 Votes

20 Answers

2nd Nov 2018, 3:10 PM

Priscila Rodríguez

Say that I'm wrong, but I'm sure you can instanciate abstract classes

-1 Vote

Why we can't create object of abstract class un java?

18th Oct 2018, 6:46 PM

Keheck

1 Vote