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Why does Java's Arrays.sort method use two different sorting algorithms for different types?
...nd merge sort for arrays of objects. I believe that most of time Quicksort is faster than merge sort and costs less memory. My experiments support that, although both algorithms are O(n log(n)). So why are different algorithms used for different types?
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How to resume Fragment from BackStack if exists
...ed at the top of the class. I am adding the fragment to an activity like this:
6 Answers
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XmlSerializer: remove unnecessary xsi and xsd namespaces
Is there a way to configure the XmlSerializer so that it doesn't write default namespaces in the root element?
4 Answers
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Android XML Percent Symbol
I have an array of strings in which the % symbol is used. Proper format for using the % is % . When I have a string in that array with multiple % it gives me this error.
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Check for column name in a SqlDataReader object
How do I check to see if a column exists in a SqlDataReader object? In my data access layer, I have create a method that builds the same object for multiple stored procedures calls. One of the stored procedures has an additional column that is not used by the other stored procedures. I want to ...
Difference between timestamps with/without time zone in PostgreSQL
Are timestamp values stored differently in PostgreSQL when the data type is WITH TIME ZONE versus WITHOUT TIME ZONE ? Can the differences be illustrated with simple test cases?
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Is there a difference between `continue` and `pass` in a for loop in python?
Is there any significant difference between the two python keywords continue and pass like in the examples
11 Answers
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Functional style of Java 8's Optional.ifPresent and if-not-Present?
In Java 8, I want to do something to an Optional object if it is present, and do another thing if it is not present.
12 A...
Can virtual functions have default parameters?
...s in the base class are not inherited by derived classes.
Which default is used -- ie, the base class' or a derived class' -- is determined by the static type used to make the call to the function. If you call through a base class object, pointer or reference, the default denoted in the base cla...
Replacing NAs with latest non-NA value
... non-NA value. A simple example, using vectors (instead of a data.frame ) is the following:
18 Answers
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