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How to count the number of occurrences of an element in a List
I have an ArrayList , a Collection class of Java, as follows:
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How to print a date in a regular format?
This is my code:
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How can I implement an Access Control List in my Web MVC application?
...wer (ACL implementation)
In my humble opinion, the best way to approach this would be to use decorator pattern, Basically, this means that you take your object, and place it inside another object, which will act like a protective shell. This would NOT require you to extend the original class. Here ...
Obfuscated C Code Contest 2006. Please explain sykes2.c
How does this C program work?
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Applicatives compose, monads don't
What does the above statement mean? And when is one preferable to other?
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What is the purpose of fork()?
..., I have seen code using fork() . Why do we need to use fork() and what is its purpose?
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How do MySQL indexes work?
...d the topic (that's a full table scan).
On the other hand, an index has a list of keywords, so you'd consult the index and see that storage is mentioned on pages 113-120,231 and 354. Then you could flip to those pages directly, without searching (that's a search with an index, somewhat faster).
Of ...
How do I determine whether an array contains a particular value in Java?
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Arrays.asList(yourArray).contains(yourValue)
Warning: this doesn't work for arrays of primitives (see the comments).
Since java-8 you can now use Streams.
String[] values = {"AB","BC","CD","AE"};
boolean contains = Arrays.stream(...
Difference between Service, Async Task & Thread?
What is the difference between Service, Async Task & Thread. If i am not wrong all of them are used to do some stuff in background. So, how to decide which to use and when?
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RabbitMQ and relationship between channel and connection
... represents a real TCP connection to the message broker, whereas a Channel is a virtual connection (AMQP connection) inside it. This way you can use as many (virtual) connections as you want inside your application without overloading the broker with TCP connections.
You can use one Channel for ever...