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What makes a keychain item unique (in iOS)?
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The primary keys are as follows (derived from open source files from Apple, see Schema.m4, KeySchema.m4 and SecItem.cpp):
For a keychain item of class kSecClassGenericPassword, the primary key is the combination of
kSecAttrAccount and kSecAttrService.
For a keych...
Convert String to Calendar Object in Java
...
tl;dr
The modern approach uses the java.time classes.
YearMonth.from(
ZonedDateTime.parse(
"Mon Mar 14 16:02:37 GMT 2011" ,
DateTimeFormatter.ofPattern( "E MMM d HH:mm:ss z uuuu" )
)
).toString()
2011-03
Avoid legacy date-time classes
The modern way is w...
Java: Calling a super method which calls an overridden method
...he future.
That means there is no direct way to call SuperClass.method2() from SuperClass.method1() without going though SubClass.method2() unless you're working with an actual instance of SuperClass.
You can't even achieve the desired effect using Reflection (see the documentation of java.lang.re...
How do I get the RootViewController from a pushed controller?
So, I push a view controller from RootViewController like:
8 Answers
8
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Java “Virtual Machine” vs. Python “Interpreter” parlance?
...know as the Java VM is not really Java specific. You could make a compiler from other languages that result in byte codes that can be run on the JVM. On the other hand, I don't think we would really think of "compiling" some other language other than Python into Python for interpretation by the Pyth...
How do you execute an arbitrary native command from a string?
...cause the contents of the string are exactly how you would run it straight from a Powershell command prompt:
$command = 'C:\somepath\someexe.exe somearg'
iex $command
However, if the exe is in quotes, you need the help of & to get it running, as in this example, as run from the commandline:
...
How to properly create composite primary keys - MYSQL
...not make the primary key of the "info" table a composite of the two values from other tables.
Others can articulate the reasons better, but it feels wrong to have a column that is really made up of two pieces of information. What if you want to sort on the ID from the second table for some reason?...
How can I verify a Google authentication API access token?
...;
This is Google V3 OAuth AccessToken validating endpoint, you can refer from google document below: (In OAUTH 2.0 ENDPOINTS Tab)
https://developers.google.com/identity/protocols/OAuth2UserAgent#validate-access-token
shar...
How to get commit history for just one branch?
Let's say I created a new branch my_experiment from master and made several commits to my_experiment . If I do a git log when on my_experiment , I see the commits made to this branch, but also the commits made to master before the my_experiments branch was created.
...
CSS Font Border?
... - text-shadow list
@function stroke($stroke, $color) {
$shadow: ();
$from: $stroke*-1;
@for $i from $from through $stroke {
@for $j from $from through $stroke {
$shadow: append($shadow, $i*1px $j*1px 0 $color, comma);
}
}
@return $shadow;
}
/// Stroke font-character
/// @par...