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Java system properties and environment variables
What's the difference between system properties System.getProperties() and environment variables System.getenv() in a JVM?
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When to use a “has_many :through” relation in Rails?
I am trying to understand what has_many :through is and when to use it (and how). However, I am not getting it. I am reading Beginning Rails 3 and I tried Googling, but I am not able to understand.
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What is the current choice for doing RPC in Python? [closed]
Actually, I've done some work with Pyro and RPyC, but there is more RPC implementation than these two. Can we make a list of them?
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Smallest data URI image possible for a transparent image
...a transparent 1x1 image with a background image, to be able to use sprites and still provide alternative text for some icons.
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How to get UILabel to respond to tap?
I have discovered that I can create UILabel much faster than UITextField and I plan to use UILabel most of the time for my data display app.
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How do I write LINQ's .Skip(1000).Take(100) in pure SQL?
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In SQL Server 2005 and above you can use ROW_NUMBER function. eg.
USE AdventureWorks;
GO
WITH OrderedOrders AS
(
SELECT SalesOrderID, OrderDate,
ROW_NUMBER() OVER (ORDER BY OrderDate) AS 'RowNumber'
FROM Sales.SalesOrderHeader
)
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What is NSZombie?
...planation. Let inform that Cocoa Dev Link is no more working. +1 for short and to the point.
– CRDave
Feb 7 '14 at 5:20
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Reading CSV file and storing values into an array
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It's over 3 years later and this question is still helping someone. I feel bad that you didn't get an accept on this.
– AdamMc331
Aug 12 '14 at 17:50
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Android Crop Center of Bitmap
I have bitmaps which are squares or rectangles. I take the shortest side and do something like this:
9 Answers
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How does HashSet compare elements for equality?
..., it will find the hash code using IEqualityComparer<T>.GetHashCode, and store both the hash code and the element (after checking whether the element is already in the set, of course).
To look an element up, it will first use the IEqualityComparer<T>.GetHashCode to find the hash code, t...