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Why does this code using random strings print “hello world”?
...gorithms are specified for the class Random. Java implementations must use all the algorithms shown here for the class Random, for the sake of absolute portability of Java code."
– FThompson
Aug 27 '13 at 3:05
...
Binary Data in JSON String. Something better than Base64
...builtin functions, but the space efficiency is bad -- a 105% expansion (if all input bytes are equally likely) vs. 25% for base85 or 33% for base64.
Final verdict: base64 wins, in my opinion, on the grounds that it's common, easy, and not bad enough to warrant replacement.
See also: Base91 and Bas...
Parallel foreach with asynchronous lambda
I would like to handle a collection in parallel, but I'm having trouble implementing it and I'm therefore hoping for some help.
...
How do CDI and EJB compare? interact?
...s, different implementations or algorithms (so you don't need EJB there at all).
EJB: you do understand, and probably you are confused by @EJB annotation - it allows you to inject implementation into your service or whatever. The main idea is that class, where you inject, should be managed by EJB co...
Convert Time from one time zone to another in Rails
...ious reply it's suggested to use a before_filter to set the timezone temporally.
You should never, ever do that because Time.zone stores the information in the thread, and it will probably leak to the next request handled by that thread.
Instead you should use an around_filter to make sure that t...
C#: Abstract classes need to implement interfaces?
...
In C#, a class that implements an interface is required to define all members of that interface. In the case of an abstract class, you simply define those members with the abstract keyword:
interface IFoo
{
void Bar();
}
abstract class Foo : IFoo
{
public abstract void Bar();
}
...
Is there a way to define a min and max value for EditText in Android?
...Filters(new InputFilter[]{ new InputFilterMinMax("1", "12")});
This will allow user to enter values from 1 to 12 only.
EDIT :
Set your edittext with android:inputType="number".
You can find more details at https://www.techcompose.com/how-to-set-minimum-and-maximum-value-in-edittext-in-android-a...
Unknown column in 'field list' error on MySQL Update query
...Thank you. I was trying to figure out why my query in PHP was not working, all I had to do was add the single quotes.
– RiCHiE
Jul 2 '16 at 5:12
1
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What is the difference between '@' and '=' in directive scope in AngularJS?
...ot create a new scope. It will use the parent scope. You can then access all of the parent scope properties directly.
The documentation says "Often it's desirable to pass data from the isolated scope via an expression and to the parent scope", but that seems to work fine with bidirectional bin...
What is the best extension for SQLite database files? [closed]
...king about in the database by themselves. The program reads and writes it all by itself. The only reason for a user to touch the DB file is to take a backup copy. Therefore I have named it whatever_records.db
The simple .db extension tells the user that it is a binary data file and that's all the...