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How do I stop a Git commit when VI is on the screen waiting for a commit message?
...ommit message (only the first few rows not beginning with a #) for example by holding v and using arrow keys to select it and then pressing Delete. Quit with :wq to apply changes! If you use :q! the changes will be lost and the previous commit message will be used.
When using VIM it's ok in both c...
How to represent empty char in Java Character class
... cannot be the answer to this question. The correct answer, already given by user3001, is to use Java's boxed Character reference type and give it 'null' value when 'no character' is needed.
– Chris Hatton
Aug 2 '14 at 3:24
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Keyboard shortcut to comment lines in Sublime Text 2
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By default on Linux/Windows for an English keyboard the shortcut is Ctrl+Shift+/ to toggle a block comment, and Ctrl+/ to toggle a line comment.
If you go into Preferences->Key Bindings - Default, you can find all the sho...
How do I read any request header in PHP
...X with the name of the header you need in UPPERCASE (and with '-' replaced by '_')
$headerStringValue = $_SERVER['HTTP_XXXXXX_XXXX'];
ELSE IF: you run PHP as an Apache module or, as of PHP 5.4, using FastCGI (simple method):
apache_request_headers()
<?php
$headers = apache_request_headers();...
Suppress echo of command invocation in makefile?
...The effect of preceding the command with an @ can be extended to a section by extending the command using a trailing backslash on the line. If a .PHONY command is desired to suppress output one can begin the section with:
@printf "..."
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Access Denied for User 'root'@'localhost' (using password: YES) - No Privileges?
....7.+ :
Access denied for user 'root'@'localhost'
it's because MySql 5.7 by default allow to connect with socket, which means you just connect with sudo mysql. If you run sql :
SELECT user,authentication_string,plugin,host FROM mysql.user;
then you will see it :
+------------------+-----------...
Why would iterating over a List be faster than indexing through it?
...to the other implementation of List which is ArrayList, that one is backed by a simple array. In that case both of the above traversals are equivalent, since an array is contiguous so it allows random jumps to arbitrary positions.
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Should you always favor xrange() over range()?
...[Edit] There are a couple of posts mentioning how range() will be upgraded by the 2to3 tool. For the record, here's the output of running the tool on some sample usages of range() and xrange()
RefactoringTool: Skipping implicit fixer: buffer
RefactoringTool: Skipping implicit fixer: idioms
Refacto...
How to construct a relative path in Java from two absolute paths (or URLs)?
... path there's java.nio.file.Path#relativize since Java 1.7, as pointed out by @Jirka Meluzin in the other answer.
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git - skipping specific commits when merging
..." option tells git to use a special "merge strategy" which, in fact, works by simply keeping the tree you are merging into and ignoring the commit(s) you are merging completely. But it does still make a new merge commit with HEAD and maint~3 as the parents, so the revision graph now says that maint~...