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Best implementation for hashCode method for a collection
...ht be not what you expect because hashCode() for an array is just its java.lang.System.identityHashCode(...).
– starikoff
Dec 21 '15 at 11:48
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The difference between the Runnable and Callable interfaces in Java
...it unit)) ? So isn't there a benefit to maintaining both interfaces in the language even the history didn't force the current outcome?
– max
May 4 '17 at 11:46
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What is the purpose of the single underscore “_” variable in Python?
... import gettext
gettext.bindtextdomain('myapplication', '/path/to/my/language/directory')
gettext.textdomain('myapplication')
_ = gettext.gettext
# ...
print(_('This is a translatable string.'))
2019 update: Added lambda. For a long time this answer only listed three use cases...
How to check iOS version?
...ewControllerTransitionStyleScroll in iOS6.
– Paul de Lange
Nov 20 '12 at 13:11
7
This doesn't wor...
Why is there no String.Empty in Java?
...
Use org.apache.commons.lang.StringUtils.EMPTY
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Get nested JSON object with GSON using retrofit
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@Mr.Tea It'll be java.lang.reflect.Type
– aidan
Jun 15 '15 at 13:07
1
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No line-break after a hyphen
...dle because it does not support meta tags.
<!DOCTYPE html>
<html lang="en">
<head>
<meta http-equiv="X-UA-Compatible" content="IE=9" />
<meta charset="utf-8"/>
<style>
body { padding: 20px; }
div { width: 300px;...
What is the C# equivalent to Java's isInstance()?
...ote that while both Java and C# work on the runtime type object (Java java.lang.Class ≣ C# System.Type) of an obj (via .getClass() vs .getType()), Java’s isInstance takes an object as its argument, whereas C#’s IsAssignableFrom expects another System.Type object.
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What is the difference between SQL, PL-SQL and T-SQL?
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SQL is a query language to operate on sets.
It is more or less standardized, and used by almost all relational database management systems: SQL Server, Oracle, MySQL, PostgreSQL, DB2, Informix, etc.
PL/SQL is a proprietary procedural langu...
How can I get the SQL of a PreparedStatement?
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It doesn't work and throws ClassCastException: java.lang.ClassCastException: oracle.jdbc.driver.T4CPreparedStatement cannot be cast to com.mysql.jdbc.JDBC4PreparedStatement
– Ercan
Apr 4 '19 at 13:15
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