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Ways to iterate over a list in Java
Being somewhat new to the Java language I'm trying to familiarize myself with all the ways (or at least the non-pathological ones) that one might iterate through a list (or perhaps other collections) and the advantages or disadvantages of each.
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Correct way to close nested streams and writers in Java [duplicate]
Note: This question and most of its answers date to before the release of Java 7. Java 7 provides Automatic Resource Management functionality for doing this easilly. If you are using Java 7 or later you should advance to the answer of Ross Johnson .
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Convert a JSON String to a HashMap
I'm using Java, and I have a String which is JSON:
18 Answers
18
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What is a word boundary in regex?
I am using Java regexes in Java 1.6 (to parse numeric output, among other purposes) and cannot find a precise definition of \b ("word boundary"). I had assumed that -12 would be an "integer word" (matched by \b\-?\d+\b ) but it appears that this does not work. I'd be grateful to know of ways ...
Java null check why use == instead of .equals()
In Java I am told that when doing a null check one should use == instead of .equals(). What are the reasons for this?
16 An...
How do I programmatically change file permissions?
In Java, I'm dynamically creating a set of files and I'd like to change the file permissions on these files on a linux/unix file system. I'd like to be able to execute the Java equivalent of chmod . Is that possible Java 5? If so, how?
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Why does this Java code compile?
... reasons for the errors are also different.
Fields
Field initializers in Java are governed by JLS §8.3.2, Initialization of Fields.
The scope of a field is defined in JLS §6.3, Scope of a Declaration.
Relevant rules are:
The scope of a declaration of a member m declared in or inherited by a ...
erb, haml or slim: which one do you suggest? And why? [closed]
...'re looking for? Browse other questions tagged ruby-on-rails haml erb slim-lang or ask your own question.
Eclipse comment/uncomment shortcut?
...t so far I haven't found solutions for comment/uncomment shortcut on both Java class editor and jsf faceted webapp XHTML file editor :
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Iterating a JavaScript object's properties using jQuery
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$.each( { name: "John", lang: "JS" }, function(i, n){
alert( "Name: " + i + ", Value: " + n );
});
each
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