Q&A Discussions

How can I make a hexadecimal number (e.g. #FF0000) transparent?

8th Jan 2016, 1:50 AM

Nana Qhuacy

css css3

3 Votes

So x++ and ++x are essentially both the same as x=x+1 but the postfix is the only one that changes the value? Or no? I think I missed something.

7th Jan 2016, 4:29 PM

Patrick G.

c++operators

4 Votes

8 Answers

6th Jan 2016, 7:47 PM

Geoff williams

Seems like math class doesn't exist in my eclipse version in library. It asks me to create method pow when I try to check Double a = Math.pow(2,3); Any ideas?

java math

1 Vote

I do not have any Mac or iPad, how do I write code for iOS apps?

5th Jan 2016, 2:39 PM

Eugene Lukianov

swift

0 Votes

What happens if I just declare the variable "sum" but don't put the initial value? For instance, if instead of saying "int sum = 0;" , I said " int sum;"

5th Jan 2016, 9:31 AM

Digdarshan Kavia

c++variables

1 Vote

In most of the place i hv seen that the array format is like: int arr [5]; but here you r preferring to use int [5] arr; format. Is it really standard ?

3rd Jan 2016, 10:16 PM

Lucas

arrays java

0 Votes

hi guys can anyone tell me what is the use of namespace with an example and why only namespace std not namespace cout and how I know which type of namespace s are used writing an program?

2nd Jan 2016, 6:01 AM

Khandaker Maria Shabnam

c++

2 Votes

After finishing HTML5 and css3 should i start with Javascript or php?

1st Jan 2016, 1:53 AM

sivasaiprakash

css css3 html5

3 Votes

15 Answers

30th Dec 2015, 11:29 PM

Alpha Diallo

How to write i a word file?

files php

0 Votes

Why would İ prefer to use a variable rather than a constant?

29th Dec 2015, 9:09 PM

andy

c++constants

0 Votes

6 Answers

29th Dec 2015, 6:25 PM

Kevin Kiambe

How Can I be an expert Web developer?

javascript

0 Votes

I installed XAMPP tried starting Apache and got the folowing crash:

29th Dec 2015, 3:45 AM

Khalid Hasan

php

2 Votes

I can't understand, why do sin(x) and tan(x) return wrong values when I put Math.PI as x. It shows 1,22 for sin and -1,22 for tan, when it should be 0 in both cases?

27th Dec 2015, 9:03 PM

Totten Kopf

javascript math

1 Vote

Where can I download SQL IDE?

24th Dec 2015, 12:51 AM

astar95

sql

0 Votes

May I ask anyone to explain assertion in your words?

22nd Dec 2015, 4:09 AM

Gamoo

assertions python

5 Votes

11 Answers

22nd Dec 2015, 2:41 AM

jurtly

How to write tag in html. like, if I want to write <h1> in paragraph tag not as a tag but as a word. Is there any way to stop it from taking effect.

html

0 Votes

Why recursion does not occur, when I assign a value to a property within its own didSet observe?

20th Dec 2015, 10:06 AM

Vivek Kaushik

properties swift

2 Votes

I can't get fully, if this: var a =10, var b = 3 var c = a℅(a -b) and the answer is = 3, but how?

16th Dec 2015, 12:46 PM

Lilit d'Khachatryan

operators swift

0 Votes

If I want to start SWIFT, should I already know any programming language? If YES, which one? TIA

16th Dec 2015, 7:41 AM

Den Boyko

swift

0 Votes

8 Answers

16th Dec 2015, 5:59 AM

Faisal Ahammad

7%(5//2) =1. please explain. I don't understand how they get 1?

numeric-operations python

29 Votes

46 Answers

7th Dec 2015, 6:28 AM

Sean

So guys... I've been making a custom calc and I was wondering how I would add different operations? Like how do i make it so I can choose an operation?

c++operators

0 Votes

How can I apply colour tag by hexadecimal number?

4th Dec 2015, 8:34 AM

Chandler

html

0 Votes

19 Answers

4th Dec 2015, 8:25 AM

akash

I dont get the difference between print and input functions

input output python

3 Votes

Why 26 // 5 / 2 = 2.5 ? I dont understand it :(

3rd Dec 2015, 1:38 AM

Laith Hussain

numeric-operations python

0 Votes

I didn't understand what is a method?

1st Dec 2015, 9:25 PM

Michal

javascript objects

0 Votes

How do I indent? not clear on that.

27th Nov 2015, 2:16 AM

Mr.Green3322

if-statements python

0 Votes

I don't get the the code "if not True"

16th Nov 2015, 7:46 AM

Cory Bennett

boolean-logic python

4 Votes

12 Answers

11th Nov 2015, 2:30 PM

david

Do I still need to learn <frameset> if it's not supported in HTML 5?

frames html

3 Votes

10 Answers

9th Nov 2015, 5:33 PM

Tera Esparza

I can't understand what is different between require and include 😑

include php require

0 Votes

Can I use the command "show databases" in my sql?

6th Nov 2015, 2:45 AM

heet makwana

sql

0 Votes

So can I only learn HTML5 and forget about the older versions? :D

4th Nov 2015, 8:53 AM

Shashank Bhagat

html html5

16 Votes

34 Answers

31st Oct 2015, 8:09 PM

David

I don't get how x=x+3 can be written as x+=3. Can someone please explain this to me better?

operators python

8 Votes

8 Answers

26th Oct 2015, 8:34 PM

DanielXR

Do I need to create the math class before using it?

java math

0 Votes

4 Answers

21st Oct 2015, 8:56 AM

Simon Ho

How do I build a database for a social network for education purposes?

sql

0 Votes

I finished HTML, but I would rather learn Java over HTML5. Could I do that?

9th Oct 2015, 12:41 PM

Oze Ezeanochie

html html5 java

-1 Vote

I need to know why we need to set the environment path?

27th Sep 2015, 6:39 PM

wolfiefilms

java jdk

0 Votes

hi there. I have noticed that in the lesson you didn't gave the int datatype a size parameter. Does it mean that int parameter can hold lby default any integer no matter how many characters it consists of?

26th Sep 2015, 1:34 AM

Anup Jaguri

sql tables

0 Votes

After complete the html how i connect with web for create web site?

24th Sep 2015, 8:35 AM

George Shtalman

html

0 Votes

I still don't understand what relative and absolute means? someone can explain it to me? thanks.

23rd Sep 2015, 5:35 PM

tawseef

css

0 Votes

Will adding serious amounts of comments slow down the program? I mean like a novel length like the types of: war and peace.

23rd Sep 2015, 1:14 PM

Gil

c++comments

0 Votes

I want to know why make classes? if you can simply make methods in the main class?

18th Sep 2015, 5:07 PM

Henrik Karlberg

classes java

0 Votes

Where can I find a good (and easy to install) C++ compiler for mac?

4th Sep 2015, 11:20 AM

miguel coy

c++compiler

0 Votes

I have single table called flow, which has every 10 mins flow sample. I want to show sum of this samples per shift like 8am to 4pm shift1, 4pm to 12am shift2, 12am to 8am shift3

23rd Aug 2015, 7:39 PM

Ciara Adkins

sql union

0 Votes

Am using mac and no java program installed in my applications. What can I do... It seems totally different on Windows.

22nd Aug 2015, 5:12 AM

hari Prasad

java jdk

0 Votes

Can i add a box-shadow on a table?

10th Aug 2015, 11:57 AM

Charlie Wheeler

box-shadow css css3

3 Votes

6 Answers

10th Aug 2015, 10:40 AM

Claudiu Maxim

hi guys, i m just a beginner in c++, this parts i means Pointers is difficult for me, i dont understand clearly and where can i use this if i built app. Is it important in c++ ?

c++pointers

3 Votes

What am I doing wrong when I type javac on command prop and it says it's not recognized as internal or external command, operable program or batch file?

9th Aug 2015, 11:37 AM

Tuang Hau Mun

java jdk

4 Votes

11 Answers

5th Aug 2015, 9:25 PM

Juuso Varho

Is it possible to accept array elements from the user? If so, how should I proceed?

arrays java

0 Votes