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Why should I prefer to use member initialization lists?
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Apart from the performance reasons mentioned above, if your class stores references to objects passed as constructor parameters or your class has const variables then you don't have any choice except using initializer lists.
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Filter Java Stream to 1 and only 1 element
...nd elements in a LinkedList . I want to guarantee, however, that there is one and only one match to the filter criteria.
2...
Generate an integer that is not among four billion given ones
...put file with any given 16-bit prefix, for all possible 16-bit prefixes in one pass through the input file. At least one of the buckets will have be hit less than 216 times. Do a second pass to find of which of the possible numbers in that bucket are used already.
If it means more than 32 bits, but...
Which is faster: multiple single INSERTs or one multiple-row INSERT?
I am trying to optimize one part of my code that inserts data into MySQL. Should I chain INSERTs to make one huge multiple-row INSERT or are multiple separate INSERTs faster?
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How to get the filename without the extension from a path in Python?
...Note: If the filename has multiple dots, only the extension after the last one is removed. For example:
import os
print(os.path.splitext("/path/to/some/file.txt.zip.asc")[0])
Prints:
/path/to/some/file.txt.zip
See other answers below if you need to handle that case.
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difference between primary key and unique key
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Primary Key:
There can only be one primary key in a table
In some DBMS it cannot be NULL - e.g. MySQL adds NOT NULL
Primary Key is a unique key identifier of the record
Unique Key:
Can be more than one unique key in one table
Unique key can have NULL v...
What's the difference between INNER JOIN, LEFT JOIN, RIGHT JOIN and FULL JOIN? [duplicate]
...SQL SERVER – Better Performance – LEFT JOIN or NOT IN?.
Find original one at: Difference between JOIN and OUTER JOIN in MySQL.
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Difference between initLoader and restartLoader in LoaderManager
...ft unchanged and any previous
callbacks replaced with the newly provided ones. If there is not
currently a Loader for the ID, a new one is created and started.
This function should generally be used when a component is
initializing, to ensure that a Loader it relies on is created. This
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How do you split and unsplit a window/view in Eclipse IDE?
...Editor>Toggle Split Editor were added with Eclipse Luna 4.4 M4, as mentioned by Lars Vogel in "Split editor implemented in Eclipse M4 Luna"
The split editor is one of the oldest and most upvoted Eclipse bug! Bug 8009
The split editor functionality has been developed in Bug 378298, and will be ava...
Concatenate multiple result rows of one column into one, group by another column [duplicate]
I'm having a table like this
2 Answers
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