Discussions Q&R

PYTHON: difference between defining a class with and without (empty) parentheses

3rd Mar 2020, 3:48 AM

Savager

class parentheses python

2 Votes

What happens when a table is created without defining columns?

25th Feb 2020, 9:12 AM

Prof. Dr. Zoltán Vass

tables

4 Votes

Is it necessary to give prototype before defining function in c?

12th Mar 2019, 8:01 AM

Suraksha

2 Votes

What is difference in defining class .first or p.first in css

25th Jul 2020, 3:48 AM

PUJA CHOURSIYA

class css html

6 Votes

What happens when we use the function before defining it?

11th Jun 2017, 7:03 AM

Rahul Roy

0 Vote

what is the purpose of defining explicit constructor in a class?

27th Jul 2020, 1:20 PM

Suman Singh

c++constructors

0 Vote

7 Réponses

18th Aug 2016, 7:14 PM

Amit Gupta

How to create array without defining Size (free size ) ?

core java

0 Vote

7 Réponses

14th Feb 2018, 7:22 AM

Prashant Kumar

Is parentheses alwys requird wen we r defining our function?

functions python3

0 Vote

Could anyone please help me defining what does "is" do??

9th May 2019, 9:50 AM

Y AD Ù

python3

2 Votes

Why we more often use static void while defining a method?

28th Jan 2018, 12:49 PM

Ahmed Kamal

java methods static void

0 Vote

What is the difference between cout and return while defining a function??

27th Jul 2020, 4:56 PM

Samba_Chinta

c++cout function return

2 Votes

What is the difference between declaring and defining a variable in c?

27th Feb 2018, 3:21 PM

Yogesh Yadav

-2 Votes

What are the different ways of defining functions in javascript?

27th Aug 2021, 9:38 PM

Onigiri raijin

javascript

0 Vote

What is the use of defining a class as abstract?

2nd Feb 2017, 11:43 AM

Anita Sharma

classes java

1 Vote

Why do we use self attribute in defining an instance of class? What is it's specific purpose?

21st Jul 2016, 6:28 PM

Gurpreet Singh

classes functions instance python3

9 Votes

What is the use alt tag in defining image in html

17th Apr 2019, 2:50 AM

Prince PS[Not_Active]

"/>alt="

0 Vote

What is the benifit of defining the main method inside the class in java?

10th Jul 2018, 9:34 AM

Manish Dwivedi

java

2 Votes

How do we give array inputs without specifying array size when defining the array.

18th Jun 2017, 2:01 PM

dharshini😎

arrays c++

0 Vote

In C/C++, what is the advantage of declaring a function before defining it's body?

27th Oct 2020, 1:59 PM

Bharadwaaja Kanakadandi

c c++cpp

0 Vote

Can someone help me understand more about defining methods inside constructor functions

7th Jul 2018, 8:25 PM

Silas Junior

methods objects

0 Vote

Can anyone help me with this question:-. Write a c++ program taking 5 item and defining it with any alphabet?

1st Jan 2018, 8:42 PM

Too Vincent

c++

1 Vote

26 Réponses

2nd Jan 2018, 4:34 AM

Anshul Anand

What does static mean when defining methods? C# (or java I guess)

c#methods static

0 Vote

The #define directive uses macros for defining constant values. What does this mean...?

9th Oct 2019, 5:52 PM

Nick Mattinson

data-types

0 Vote

Is it legal to use static when defining the subclasses for a polymorphism method.

13th Jun 2019, 6:43 AM

Akash C R

java polymorphism

-1 Vote

Can anyone clearly specify what are these px,pt,cm,em,etc such length defining elements differ.

15th May 2017, 8:07 PM

Paul Mutondo

css

0 Vote

Why a_variable_name and A_VARIBLE_NAME are not the same when defining a variable name?? In question section

3rd Oct 2016, 12:11 AM

Krishna Mahesh

variables

1 Vote

Is it a good programming habit to initialize class attributes while defining a class ?

13th Jul 2021, 11:33 AM

Ibrahim Ahmad

class objects

1 Vote

Shouldn't it be a compilation error.Here i am defining "a "again rather then only initializing it

4th Dec 2022, 6:46 AM

Krishna Sarawagi

assign compile declare define error initialize java

0 Vote

What is the meaning when we put ./ and ../ while defining path for a file ?

26th Aug 2020, 5:17 PM

anshu kulshrestha

absolute-path

0 Vote

Are lambda in python only valid for defining the function with only one statement?

9th Oct 2021, 4:27 PM

Levi

lambdas python

0 Vote

Why do we use the base class type when defining pointers to derived class objects?

27th Dec 2017, 8:56 AM

Sai Raja Yalla

c++oop pointers

0 Vote

I have to develop a program to assist Zoo staff to record required information of animals.Help with defining the methods!

30th Mar 2022, 6:38 AM

Paek Se

arraylistinoop inheritance java menutokeeprecordsinazoo oop program

0 Vote

Defining the Method that just prints out a string, Why is there no return neccessary?

10th May 2020, 1:21 PM

Nica STRAIT

java methods

0 Vote

Is defining a new class in separate files(in CODE BLOCKS) in C++ is really beneficial ?

31st Dec 2016, 4:49 PM

eternallatesummer

c++classes files

0 Vote

Can we use the previously define function name for defining another function as it can be assigned with some other name?

13th Apr 2017, 8:57 AM

Khalidh Ahamed

functions python

1 Vote

7 Réponses

30th Jun 2016, 6:47 AM

Rituraj Mehra

Can be defined only once means???

constants defined defining php

1 Vote

why function initialisation [int main()] and variable defining [int sum;] are both the same command “int” ?

7th Feb 2017, 4:10 PM

Robin Roy

c++variables

0 Vote

If I add "public" while defining a variable in main method it shows me error in c#,why?

23rd Apr 2017, 12:47 PM

Azat Jorayev

c#error input

0 Vote

What is the use of this abstract method? If it doesn't do anything, why not just defining it in the subclasses?

29th Jun 2018, 4:12 PM

Khushboo Gupta

abstract-classes java

3 Votes

I am starting to learn Java and it seems pretty hard. So I need a little help defining some terms... ;-;

9th Aug 2016, 4:52 PM

Oliver Kratz-Lieber

beginner definitions java

3 Votes

Whenever i am defining a class and creating an instance of it ,, a TypeError is generated . why so ?

6th Feb 2017, 7:33 PM

PaperGami T.

classes python

1 Vote

Is it ok to use const keyword before the void(or any return type) while declaring and defining the constant method of object?

21st Dec 2016, 12:29 PM

Aashna

c++syntax

1 Vote

Why is it possible to call a function b4 defining it or use a variable b4 creating it I.e read bottom to top in python

16th Feb 2024, 4:43 AM

Yogeshwaran P

beginner help python3

0 Vote

What is best form, use 'px' or '%' when you are defining the size or elements. When you create a divs, images..

17th Jan 2020, 11:08 PM

Peter Paulinus Polycarp

css3 html5

1 Vote

What is the need for defining a method of a class, outside the class definition using the scope resolution operator?

20th Oct 2019, 3:38 PM

Miguel Ángel

c++class function scoperesolution

0 Vote

When defining a setter how would i code the value of the setter to be dependent on user input vs a static value?

17th Oct 2017, 1:36 PM

Antony Marianathan

attributes classes

0 Vote

Can you tell me Maximum ways of defining 3 dimensional array? Means how to define e.g. int[][][] a; Now you need to tell me othr

2nd Mar 2019, 6:26 AM

Nick Nelson

arrays

2 Votes

Need help calling defined functions!!

7th Feb 2019, 3:49 PM

arshad khan

calling defining functions input python user

0 Vote

is it necessary to specify not null on a column you are defining as the primary key? Seems like that was included in the definition of pk

8th Mar 2018, 4:28 PM

Josh Redmon

sql tables

0 Vote