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Iterator Loop vs index loop [duplicate]
...nowledge on C++ and I've stumbled upon iterators. One thing I want to know is what makes them so special and I want to know why this:
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What exactly is Arel in Rails 3.0?
I understand that it is a replacement for ActiveRecord and that it uses objects instead of queries.
4 Answers
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CharSequence VS String in Java?
...ings are CharSequences, so you can just use Strings and not worry. Android is merely trying to be helpful by allowing you to also specify other CharSequence objects, like StringBuffers.
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How to make a JTable non-editable
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You can use a TableModel.
Define a class like this:
public class MyModel extends AbstractTableModel{
//not necessary
}
actually isCellEditable() is false by default so you may omit it. (see: http://docs.oracle.com/javase/6/docs/api/javax/swing/table/AbstractTableMod...
Difference between solr and lucene
...ache projects that are made to work together, but I don't understand what is the aim of each project.
7 Answers
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Should I use int or Int32
...and Int32 are the same thing, but I've read a number of times that int is preferred over Int32 with no reason given. Is there a reason, and should I care?
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Why does a base64 encoded string have an = sign at the end
I know what base64 encoding is and how to calculate base64 encoding in C#, however I have seen several times that when I convert a string into base64, there is an = at the end.
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What is a .snk for?
What is a .snk file for? I know it stands for Strongly Named Key , but all explanations of what it is and how it works goes over my head.
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Is there any kind of hash code function in JavaScript?
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JavaScript objects can only use strings as keys (anything else is converted to a string).
You could, alternatively, maintain an array which indexes the objects in question, and use its index string as a reference to the object. Something like this:
var ObjectReference = [];
ObjectRefer...
How to maintain a Unique List in Java?
How to create a list of unique/distinct objects (no duplicates) in Java?
7 Answers
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