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How to get the first non-null value in Java?
... to Java 8 and Lambdas there is possibility to have true coalesce in Java! Including the crucial feature: particular expressions are evaluated only when needed – if earlier one is not null, then following ones are not evaluated (methods are not called, computation or disk/network operations are no...
Get day of week in SQL Server 2005/2008
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Please include explanation of what your code does and how it answers the question. If you get a code snippet as an answer, you may not know what to do with it. Answer should give the OP and future visitors guidance on how to debug a...
Internal vs. Private Access Modifiers
...To] attribute)
private members are visible only to the declaring class. (including nested classes)
An outer (non-nested) class cannot be declared private, as there is no containing scope to make it private to.
To answer the question you forgot to ask, protected members are like private members, ...
How to escape a single quote inside awk
...$1, q}'
Simpler example with string concatenation:
# Prints 'test me', *including* the single quotes.
$ awk -v q=\' '{print q $0 q }' <<<'test me'
'test me'
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Nginx缓存解决方案：SRCache - 更多技术 - 清泛网 - 专注C/C++及内核技术
...lua_shared_dict phoenix_status 100m;
lua_package_path '/path/to/phoenix/include/?.lua;/path/to/phoenix/vendor/?.lua;;';
init_by_lua_file /path/to/phoenix/config.lua;
server {
listen 80;
server_name foo.com;
root /path/to/root;
index index.html index.htm index.php;
...
How to parse/format dates with LocalDateTime? (Java 8)
...orities follow the same rules of when does it have which time offset. This includes summer time rules.
The time zones change over time for various areas, mostly based on who conquers whom. And one time zone's rules change over time as well.
There are time offsets. That is not the same as time zones,...
Center a button in a Linear layout
...wever no matter what I try to do the button will top align centre. I have included the XML below, can some one point me in the right direction?
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How do I put double quotes in a string in vba?
I want to insert an if statement in a cell through vba which includes double quotes.
5 Answers
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How to add a button to PreferenceScreen
...yout with buttons or whatever you want to add to the standard preferences. Include a ListView in your layout and give it the ID @android:id/list.
Let's say we call the layout file res/layout/main.xml. It could look something like this:
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout ...
How to find the files that are created in the last hour in unix
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Thus find -ctime 0 finds everything for which the inode has changed (e.g. includes file creation, but also counts link count and permissions and filesize change) less than an hour ago.
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