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What is null in Java?
...
Null in Java(tm)
In C and C++, "NULL" is a constant defined in a header file, with a value like:
0
or:
0L
or:
((void*)0)
depending on the compiler and memory model options. NULL is not, strictly speaking, part of C/C++ itself.
In Java(tm), "null" is not a keyword, but a spec...
How can I change an element's class with JavaScript?
... simply for brevity of example, and including the JavaScript in a distinct file may be more appropriate.)
The second step is to move the onclick event out of the HTML and into JavaScript, for example using addEventListener
<script type="text/javascript">
function changeClass(){
/...
How can I configure Logback to log different levels for a logger to different destinations?
...;pattern>[%d{yyyy-MM-dd HH:mm:ss.SSS}] [%level] [%thread] %logger{10} [%file:%line] %msg%n</pattern>
</encoder>
</appender>
<root level="INFO">
<appender-ref ref="STDOUT"/>
<appender-ref ref="STDERR" />
</root>
</c...
When/Why to use Cascading in SQL Server?
...ple about the cascading updates, I agree it's not the best example though. File locations may be a better example.
– Vinko Vrsalovic
Oct 19 '08 at 15:10
4
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Is there a simple way to remove unused dependencies from a maven pom.xml?
I have a large Maven project with many modules and many pom.xml files. The project has changed and I suspect the pom's contain some unnecessary dependencies. Is there is a command which removes any unused dependencies from a pom?
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CMake: Print out all accessible variables in a script
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@Geremia you can copy this code block to file myfile.txt and run : cmake -P myfile.txt
– Idok
Feb 3 '17 at 23:18
2
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Rails auto-assigning id that already exists
...ate tasks like this:
rails g task database correction_seq_id
And in the file generated (lib/tasks/database.rake) put:
namespace :database do
desc "Correction of sequences id"
task correction_seq_id: :environment do
ActiveRecord::Base.connection.tables.each do |t|
Acti...
How to convert floats to human-readable fractions?
... Implementation and algorithm notes at hg.python.org/cpython/file/822c7c0d27d1/Lib/fractions.py#l211
– piro
Mar 28 '11 at 10:44
2
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How do I put double quotes in a string in vba?
...b RepairFormula()
Dim FormulaString As String
FormulaString = "=MID(CELL(~filename~,$A$1),FIND(~[~,CELL(~filename~,$A$1))+1,FIND(~]~, CELL(~filename~,$A$1))-FIND(~[~,CELL(~filename~,$A$1))-1)"
FormulaString = Replace(FormulaString, Chr(126), Chr(34)) 'this replaces every instance of the tilde with ...
What's the meaning of 'origin' in 'git push origin master'
...l of the commits in the currently checked out local branch (i.e. from your file system) to the remote repo identified by the name origin on its remote branch named master.
– skuro
Nov 16 '16 at 13:42
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