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Benchmarking small code samples in C#, can this implementation be improved?
...just updated to use Stopwatch.StartNew. Not a functional change, but saves one line of code.
– LukeH
Jun 26 '09 at 13:23
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Core pool size vs maximum pool size in ThreadPoolExecutor
... maxPoolSize, then create a new Thread if Total task queue is full and new one is arriving.
Form doc:
(If there are more than corePoolSize but less than maximumPoolSize threads running, a new thread will be created only if the queue is full.)
Now, Take a simple example,
ThreadPoolExecutor executo...
Can we instantiate an abstract class?
During one of my interview, I was asked "If we can instantiate an abstract class?"
16 Answers
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Scala how can I count the number of occurrences in a list
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A somewhat cleaner version of one of the other answers is:
val s = Seq("apple", "oranges", "apple", "banana", "apple", "oranges", "oranges")
s.groupBy(identity).mapValues(_.size)
giving a Map with a count for each item in the original sequence:
Map(b...
Creating an empty Pandas DataFrame, then filling it?
...ating a data frame with index x 0 dimensions (columns = []), and attaching one column in each turn of a loop. I mean df[col_name] = pandas.Series([...]) in a loop iterating through column names. In the former case, not only the memory allocation takes time, but replacing NaNs with new values seems e...
Difference of keywords 'typename' and 'class' in templates?
...c cases where there is a difference between typename and class.
The first one is in the case of dependent types. typename is used to declare when you are referencing a nested type that depends on another template parameter, such as the typedef in this example:
template<typename param_t>
clas...
How do I use boolean variables in Perl?
... the right argument. Its not boolean but sometimes you may want to know if one argument ir equal or less than or greater than the other instead of just equal or not equal.
– user118435
Jun 24 '09 at 6:47
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“Conversion to Dalvik format failed with error 1” on external JAR
... after javadoc generated code will works fine.Please check this too if any one still occurs.
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NoSQL (MongoDB) vs Lucene (or Solr) as your database
...ly easier transition for programmers detoxing from the RDBMS world. Unless one's used to it Lucene & Solr have a steeper learning curve.
There aren't many examples of using Lucene/Solr as a datastore, but Guardian has made some headway and summarize this in an excellent slide-deck, but they too ...
Is there any significant difference between using if/else and switch-case in C#?
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Hey, I owe you an apology. Sorry for being a bone head.
– Scott Wisniewski
Dec 28 '08 at 8:39
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