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Calling Java varargs method with single null argument?
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The ordering for method overloading resolution is (https://docs.oracle.com/javase/specs/jls/se11/html/jls-15.html#jls-15.12.2):
The first phase performs overload resolution without permitting boxing or unboxing conversion,...
Fastest way to iterate over all the chars in a String
...s are done 1,000 times per string size
The tests are shuffled into random order each time. In other words, the tests are done in random order every time they are done, over 1000 times over.
The entire test suite is done forwards, and backwards, to show the effect of JVM warmup on optimization and ...
Why specify @charset “UTF-8”; in your CSS file?
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The correct rules to determine the character set of a stylesheet are in order of priority:
HTTP Charset header.
Byte Order Mark.
The first @charset rule.
UTF-8.
The last rule is the weakest, it will fail in some browsers.
The charset attribute in <link rel='stylesheet' charset='utf-8'>...
What are the differences between “=” and “
...nd <- have slightly different operator precedence (which determines the order of evaluation when they are mixed in the same expression). In fact, ?Syntax in R gives the following operator precedence table, from highest to lowest:
…
‘-> ->>’ rightwards assignment
‘<...
Does MySQL included with MAMP not include a config file?
...eports:
Default options are read from the following files in the given order:
/etc/my.cnf /etc/mysql/my.cnf /Applications/MAMP/conf/my.cnf ~/.my.cnf
Copy one of the variants in /Applications/MAMP/Library/support-files/ to one of the locations in mysqld's search order above, and you should be...
Heroku Postgres - terminate hung query (idle in transaction)
... sql:
SELECT pid , query, * from pg_stat_activity
WHERE state != 'idle' ORDER BY xact_start;
(The query may need mending dependent of the version of postgres - eventually, just select * from pg_stat_activity). You'll find the pid in the first (left) column, and the first (top) row is likely to...
How to install trusted CA certificate on Android device?
...website:
As of Android N, you need to add configuration to your app in order to
have it trust the SSL certificates generated by Charles SSL Proxying.
This means that you can only use SSL Proxying with apps that you
control.
In order to configure your app to trust Charles, you need to ...
c# open a new form then close the current form?
...Here's an example scenario:
I need the user to enter their credentials in order for me to authenticate them somehow. Afterwards, if authentication was successful, I want to show the main application to the user. In order to accomplish this, I'm using two forms: LogingForm and MainForm. The LoginFor...
Why use the yield keyword, when I could just use an ordinary IEnumerable?
... and you would like to see the first handful (5) records of the year.
In order to accomplish this, the list must be sorted ascending by date, and then have the first 5 taken. If this was done without yield, the entire list would have to be sorted, right up to making sure the last two dates were in...
Android: why is there no maxHeight for a View?
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In order to create a ScrollView or ListView with a maxHeight you just need to create a Transparent LinearLayout around it with a height of what you want the maxHeight to be. You then set the ScrollView's Height to wrap_content. ...