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HashMap get/put complexity
...ashMap get/put operations are O(1). However it depends on the hash implem>me m>ntation. The default object hash is actually the internal address in the JVM heap. Are we sure it is good enough to claim that the get/put are O(1) ?
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What is the exact m>me m>aning of IFS=$'\n'?
If the following example, which sets the IFS environm>me m>nt variable to a line feed character...
6 Answers
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Checkout remote branch using git svn
...see all the Subversion branches on the git side:
git branch -r
Say the nam>me m> of the branch in Subversion is waldo. On the git side, you'd run
git checkout -b waldo-svn remotes/waldo
The -svn suffix is to avoid warnings of the form
warning: refnam>me m> 'waldo' is ambiguous.
To update the git branch ...
How do I view the list of functions a Linux shared library is exporting?
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add a comm>me m>nt
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How to make Scroll From Source feature always enabled?
How to enable "Scroll from source" in IntelliJ IDEA so it is always on, m>me m>aning if you open any file it is automatically shown in Project view, likewise it is made in Eclipse?
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Reverting single file in SVN to a particular revision
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but the next tim>me m> you update it gets the file you didn't want back... :S
– andygoestohollywood
Nov 15 '13 at 9:53
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How do I negate a condition in PowerShell?
...use bitwise exclusive or, though it's not the most readable/understandable m>me m>thod.
if ((test-path C:\code) -bxor 1) {write "it doesn't exist!"}
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Different dependencies for different build profiles
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To quote the Maven docum>me m>ntation on this:
A profile elem>me m>nt contains both an optional activation (a profile trigger) and the set of changes to be made to the POM if that profile has been activated. For example, a project built for a test environm>me m>...
Change MySQL default character set to UTF-8 in my.cnf?
...set=utf8
[mysqld]
collation-server = utf8_unicode_ci
init-connect='SET NAm>ME m>S utf8'
character-set-server = utf8
If you want to change the character set for an existing DB, let m>me m> know... your question didn't specify it directly so I am not sure if that's what you want to do.
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How to retrieve inserted id after inserting row in SQLite using Python?
...astrowid (see "Optional DB API Extensions"):
connection=sqlite3.connect(':m>me m>mory:')
cursor=connection.cursor()
cursor.execute('''CREATE TABLE foo (id integer primary key autoincrem>me m>nt ,
usernam>me m> varchar(50),
password varchar(50...