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How to check whether an array is empty using PHP?
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answered Feb 7 '10 at 5:32
Tyler CarterTyler Carter
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Difference between solr and lucene
... complex operations. Any application can use this library, not just Solr.
3) Solr is built around Lucene. It is not just an http-wrapper around Lucene but has been known to add more arsenal to Lucene. Solr is ready-to-use out of box. It is a web application that offers related infrastructure and a ...
Should a retrieval method return 'null' or throw an exception when it can't produce the return value
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36 Answers
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Why is the clone() method protected in java.lang.Object?
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edited Jul 16 '09 at 23:24
answered Jul 16 '09 at 16:32
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Java compile speed vs Scala compile speed
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edited May 23 '17 at 12:02
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answered Aug 16 '10 at 4:07
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What's the best way of implementing a thread-safe Dictionary?
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43
As Peter said, you can encapsulate all of the thread safety inside the class. You will need to ...
Python in Xcode 4+?
...n identifier.
For the “Build Tool” field, type in /usr/local/bin/python3 for Python 3 or /usr/bin/python for Python 2 and then click “Next”. Note that this assumes you have the symbolic link (that is setup by default) that resolves to the Python executable. If you are unsure as to where your...
How can I be notified when an element is added to the page?
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answered Sep 15 '11 at 17:30
Jose FaetiJose Faeti
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Is a Java string really immutable?
...ing. The compiler does this (as mentioned by other answers).
The reason s3 does not was actually a bit surprising to me, as I thought it would share the value array (it did in earlier version of Java, before Java 7u6). However, looking at the source code of String, we can see that the value charac...
Java FileReader encoding issue
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Yes, you need to specify the encoding of the file you want to read.
Yes, this means that you ha...