Q&A Discussions

Why do I need to use variable variable?

27th Jul 2016, 4:33 PM

William Wimberly

php variables

1 Vote

Do I really need an IDE for Java Development please help me which IDE is best

26th Jul 2016, 8:05 PM

Moses

ide java

1 Vote

10 Answers

26th Jul 2016, 2:17 PM

Prashant

mine is windows 7 64bit machine. which shud i instal? jdk windows x86 or jdk windows x64. I need urgent answer.

java jdk

0 Votes

Is there ever a reason you will need del?

26th Jul 2016, 9:23 AM

Washim Reja

objects python

1 Vote

do you need to install the JDK on the comp to successfully learn java from this app?

25th Jul 2016, 9:57 PM

Barcode

java jdk

0 Votes

for user input: input type= "check box" name= "gender" value="1" />Male<br/> why do u need value="1" when you could just put male and why do u need a name when the name isn't even displayed to viewers?

25th Jul 2016, 8:59 PM

ollieoxford

forms html

3 Votes

Is this the program that I need to learn if I want to make a website like www.facebook.com?

25th Jul 2016, 3:21 PM

Andrew

html

0 Votes

8 Answers

25th Jul 2016, 11:33 AM

Constantino D. Paasa

need help

python

0 Votes

Why do I need to know the difference between heap and stack?

25th Jul 2016, 3:59 AM

Jason Puckett

c++heap positioning stack

0 Votes

While prototyping friend functions in a class is it necessary to always pass the address of the object as parameter?If so why is it that we have to pass address as parameter..In programs involving compositions we never used addresses...Why is the need for address of the objects while using friend?

24th Jul 2016, 11:51 PM

Marco Neumann

c++classes friend functions

4 Votes

Why would I ever need the NOT operator?

24th Jul 2016, 6:16 PM

Aditya Pai

c++operators

-1 Vote

Can someone please describe why we need Double within the expression?

24th Jul 2016, 2:21 AM

Captain Fach

strings swift

1 Vote

5 Answers

23rd Jul 2016, 11:48 PM

Cam

Hey all can anyone pls tell me where and when do I need classes exactly?

0 Votes

I made a WindowBuilder class on Eclipse, but when I try run that class, it say that I need to put a "public static void main(String[] args){}", ok, I put it into the class, and some elements are incompatibles with the "public static void..."

23rd Jul 2016, 10:06 PM

moli42

java main

0 Votes

23rd Jul 2016, 2:30 PM

Estêvão Rolim

why do we need inherit ?

css text

0 Votes

What is static method? Why need to define as static?

23rd Jul 2016, 6:12 AM

Igor Filimonchuk

java

1 Vote

pls to those who have completed the SQL of this app....is it all that is to be known or this is not the complete SQL we need to know

22nd Jul 2016, 11:58 PM

WPimpong

sql

1 Vote

Why would you need the comment?

22nd Jul 2016, 9:25 PM

Kelvin Quaicoo

comments html

0 Votes

If "switch" is more efficient why do we need to use if else all that?

22nd Jul 2016, 7:33 PM

joi

if-statements javascript switch

4 Votes

16 Answers

22nd Jul 2016, 2:23 AM

Reinier Blanco (Reycuban)

i need help to answer this please the first one is #intro whats th second one ''mr lilaram whats is the answer the content is empty

css selectors

1 Vote

Modules are pre available with python library or we need to declare and define ? how we can define modules?

21st Jul 2016, 7:56 AM

Festus Mwagha

modules python

1 Vote

Why doesn't the sum method in this section need static before it?

20th Jul 2016, 4:36 PM

Anup Kage

c#methods

1 Vote

Do we always need to have a function (like wrap() in our case) to decorate?

20th Jul 2016, 6:13 AM

Robert Jones

decorators python

2 Votes

If I want to create an exception class, what type of exception should I need to implement?

19th Jul 2016, 1:11 PM

Ankit Gangwal

exceptions java

1 Vote

Can somebody please help me in this harsh map need an answer and some exlainations please

19th Jul 2016, 11:20 AM

WPimpong

hashmap java

0 Votes

I don't know what to do because am a beginner in sql. need help guys

19th Jul 2016, 11:16 AM

Festus Mwagha

sql

-1 Vote

6 Answers

19th Jul 2016, 10:17 AM

Edoki Theophilus Ime

What is the use of "Exception e" and why is it need to be "Exception e"?

exceptions java

0 Votes

I need a simple project...

19th Jul 2016, 8:54 AM

Tristan

c++variables

1 Vote

So converting an integer to a float, all you'd need to do is multiple it by 1.0?

19th Jul 2016, 12:04 AM

James S.

float python

0 Votes

how can I solve this error? (not my program but same problem) plss need help

18th Jul 2016, 1:24 PM

Jonathan Picazo

java strings

0 Votes

Still not sure what method is .. i need a simple explanation ?

17th Jul 2016, 4:49 PM

hersonification

comments java

0 Votes

what is the need to keep the class private?

17th Jul 2016, 1:24 PM

Trust Ugochukwu

access-modifiers java

4 Votes

I don't understand how the "super" keyword works. Need some help, please.

16th Jul 2016, 6:00 AM

Kiran Kumari

inheritance java

1 Vote

what is c++.why developer need to developed a c++ language.

15th Jul 2016, 1:53 PM

arghlub

0 Votes

classes functions input python variables

14th Jul 2016, 8:52 AM

pankaj kirola

Need Help with my class

0 Votes

5 Answers

14th Jul 2016, 8:35 AM

sundar

I need a help. Can we link Python and Java in a program

python strings

1 Vote

7 Answers

14th Jul 2016, 6:05 AM

Pradheep

why do we need to declare the function as virtual? is there any limit on number of derived members that can call the function if it's not virtual?

c++polymorphism

2 Votes

Need help to solve this question in SQL? Get the first name, city, country, and invoiced amount of customers living either in country Brazil or in city Paris and with a total invoice greater than $38.

14th Jul 2016, 4:34 AM

Rohit Ner

sql where

1 Vote

12 Answers

14th Jul 2016, 1:43 AM

Rosekamal

Math object doesn't need constructor then Math properties are static properties?

javascript math

0 Votes

Is anyone familiar with the graphics header file, I need some help

13th Jul 2016, 4:51 PM

Sergio Zemskov

don't I need to install jdk if I install eclipse as I can also run my code on eclipse and in jdk I need cmd,.. plz.... answer.. will only installing eclipse work?

0 Votes

10 Answers

13th Jul 2016, 3:05 PM

Vedant Patadia

eclipse java

0 Votes

5 Answers

13th Jul 2016, 4:34 AM

vinay

Pls I need help understanding the Id, class and tittle attributes what do they actually mean? what are their functions? when do we use them?

html

1 Vote

6 Answers

12th Jul 2016, 5:16 PM

Denewbie

Do you need to declare variable before the bool? Or you can declare it in bool?

c++data-types

0 Votes

Could anyone give a couple of examples of when you would need to use a constant?

12th Jul 2016, 10:33 AM

Jose Cristobal Arroyo Castellanos

c#constants

0 Votes

Why do we need to convert the data types?

11th Jul 2016, 6:00 PM

Connar

c#input

0 Votes

Why we need to use # before ifndef?

11th Jul 2016, 11:48 AM

Sarthak Mathur

c++classes

1 Vote

8 Answers

11th Jul 2016, 11:00 AM

Paula Ariton

I'm using this application to learn c++ . is there any need to learn c language first

0 Votes

I need help to write this programming language

11th Jul 2016, 5:08 AM

Sagar

1 Vote

how much do I need to know in java to start Android app dev

10th Jul 2016, 6:53 PM

abud bani irshaid

java

0 Votes