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Under what circumstances are linked lists useful?
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I should add that the "linked lists in an array" approach in case of the Dictionary saves significantly more in .NET: otherwise each node would require a separate object on the heap - and every object allocated on the heap have some overhead. (en.csharp-online.net/Common_Ty...
How to implement the activity stream in a social network
...se for storage of unique activities (1 record per activity / "thing that happened") Make the records as compact as you can. Structure so that you can quickly grab a batch of activities by activity ID or by using a set of friend IDs with time constraints.
Publish the activity IDs to Redis whenever a...
Git: Permission denied (publickey) fatal - Could not read from remote repository. while cloning Git
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This is the most appropriate fallback plan if ssh permissions don't get resolved or you want to skip that part.
– Wahib Ul Haq
Apr 30 '16 at 11:12
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When is JavaScript's eval() not evil?
...ng dangerous? When you know what the danger is, and when you're taking the appropriate precautions.
To the point, let's look at the dangers in the use of eval(). There are probably many small hidden dangers just like everything else, but the two big risks - the reason why eval() is considered evil ...
Is a one column table good design? [closed]
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+1: The table is a set of values that happen to be primitive types of your RDBMS.
– S.Lott
Jun 7 '09 at 1:57
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The request was aborted: Could not create SSL/TLS secure channel
...a date of June 30 2017 to disable SSL3 and implement TLS1.2. It is already applied in their sandbox environment paypal-knowledge.com/infocenter/…
– Robin French
May 10 '16 at 14:49
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BeanFactory vs ApplicationContext
...ring Framework, I've been playing around with it and putting a few samples apps together for the purposes of evaluating Spring MVC for use in an upcoming company project. So far I really like what I see in Spring MVC, seems very easy to use and encourages you to write classes that are very unit test...
When to use actors instead of messaging solutions such as WebSphere MQ or Tibco Rendezvous?
...nally RabbitMQ and Akka actually make a good pair. You can use Akka as a wrapper to RabbitMQ particularly since RabbitMQ does not help you with handling the consumption of messages and routing the messages locally (in a single JVM).
When to choose Akka
Have lots of consumers (think millions).
Nee...
Can I catch multiple Java exceptions in the same catch clause?
...last layer where exceptions should never escape (e.g. controllers in a web app) should be the one to log the error in that case.
– duffymo
Aug 17 '10 at 14:31
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Android selector & text color
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without the android:drawable the app crashes with this selector xml
– neufuture
Sep 18 '11 at 13:34
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