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Java: Static Class?
I have a class full of utility functions. Instantiating an instance of it makes no semantic sense, but I still want to call its methods. What is the best way to deal with this? Static class? Abstract?
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HashSet vs LinkedHashSet
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The answer lies in which constructors the LinkedHashSet uses to construct the base class:
public LinkedHashSet(int initialCapacity, float loadFactor) {
super(initialCapacity, loadFactor, true); // <-- boolean dummy argument
}
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“date(): It is not safe to rely on the system's timezone settings…”
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You probably need to put the timezone in a configuration line in your php.ini file. You should have a block like this in your php.ini file:
[Date]
; Defines the default timezone used by the date functions
; http://php.net/date.timezone
date.timezone = America/Ne...
Whitespace Matching Regex - Java
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Yeah, you need to grab the result of matcher.replaceAll():
String result = matcher.replaceAll(" ");
System.out.println(result);
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fo...
Remove element of a regular array
...'t want to use List:
var foos = new List<Foo>(array);
foos.RemoveAt(index);
return foos.ToArray();
You could try this extension method that I haven't actually tested:
public static T[] RemoveAt<T>(this T[] source, int index)
{
T[] dest = new T[source.Length - 1];
if( index &g...
How to convert comma-separated String to List?
Is there any built-in method in Java which allows us to convert comma separated String to some container (e.g array, List or Vector)? Or do I need to write custom code for that?
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Extract value of attribute node via XPath
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//Parent[@id='1']/Children/child/@name
Your original child[@name] means an element child which has an attribute name. You want child/@name.
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Is there any difference between the `:key => “value”` and `key: “value”` hash notations?
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Yes, there is a difference. These are legal:
h = { :$in => array }
h = { :'a.b' => 'c' }
h[:s] = 42
but these are not:
h = { $in: array }
h = { 'a.b': 'c' } # but this is okay in Ruby2.2+
h[s:] = 42
You can also use anything as a key with => so you can do this:
h...
Can I use conditional statements with EJS templates (in JMVC)?
...al is to prepend an 's' to the word 'comment' when there is more than one. in an jQuery.ejs template in a JMVC app. The following breaks. I can't find any docs for conditionals...
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What is the purpose of the -nodes argument in openssl?
What is the purpose of the -nodes argument in openssl?
2 Answers
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