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Why does Java's hashCode() in String use 31 as a multiplier?
Per the Java documentation, the hash code for a String object is computed as:
13 Answers
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How to replace case-insensitive literal substrings in Java
Using the method replace(CharSequence target, CharSequence replacement) in String, how can I make the target case-insensitive?
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What is a C++ delegate?
...le number of choices to achieve delegates in C++. Here are the ones that came to my mind.
Option 1 : functors:
A function object may be created by implementing operator()
struct Functor
{
// Normal class/struct members
int operator()(double d) // Arbitrary return types and parameter ...
Java regex email
First of all, I know that using regex for email is not recommended but I gotta test this out.
20 Answers
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How Do I Choose Between a Hash Table and a Trie (Prefix Tree)?
...table or a prefix tree what are the discriminating factors that would lead me to choose one over the other. From my own naive point of view it seems as though using a trie has some extra overhead since it isn't stored as an array but that in terms of run time (assuming the longest key is the longest...
Allow user to select camera or gallery for image
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You'll have to create your own chooser dialog merging both intent resolution results.
To do this, you will need to query the PackageManager with PackageManager.queryIntentActivities() for both original intents and create the final list of possible Intents with one new I...
ActiveRecord, has_many :through, and Polymorphic Associations
...roblem, I think I agonized for about a day over how to do this the first time I encountered it. Didn't help that it was one of the first things I tried to do in Rails that didn't involve following a tutorial/book.
– EmFi
Nov 6 '09 at 17:28
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How do I view the full content of a text or varchar(MAX) column in SQL Server 2008 Management Studio
...600) database, there's an Events table, which contains a text column named Details . (Yes, I realize this should actually be a varchar(MAX) column, but whoever set this database up did not do it that way.)
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Convert a string to int using sql query
... How do I catch/prevent the exception when one of the fields is non-numeric? I would have expected it to convert to 0.
– Chloe
Jun 13 '13 at 17:47
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How to @link to a Enum Value using Javadoc
Using Javadoc 1.5, I have been unable to create a @link to an Enumeration value.
3 Answers
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