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How does HashSet compare elements for equality?
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138
It uses an IEqualityComparer<T> (EqualityComparer<T>.Default unless you specify a d...
CALL command vs. START with /WAIT option
... they contain carets or percent signs.
call myProg param1 param^^2 "param^3" %%path%%
Will be expanded to (from within an batch file)
myProg param1 param2 param^^3 <content of path>
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How to move an element into another element?
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edited Jul 23 '17 at 13:44
answered May 2 '16 at 13:53
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I have 2 dates in PHP, how can I run a foreach loop to go through all of those days?
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Requires PHP5.3:
$begin = new DateTime('2010-05-01');
$end = new DateTime('2010-05-10');
$interval = DateInterval::createFromDateString('1 day');
$period = new DatePeriod($begin, $interval, $end);
foreach ($period as $dt) {
echo $dt...
How do I convert from int to String?
...2; //class java/lang/StringBuilder
5: dup
6: invokespecial #3; //Method java/lang/StringBuilder."<init>":()V
Append the empty string:
9: ldc #4; //String
11: invokevirtual #5; //Method java/lang/StringBuilder.append:
(Ljava/lang/String;)Ljava/lang/StringBuil...
#include in .h or .c / .cpp?
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answered Jun 8 '10 at 23:36
Brendan LongBrendan Long
47.5k1616 gold badges123123 silver badges167167 bronze badges
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Heroku Postgres - terminate hung query (idle in transaction)
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139
This is a general Postgres answer, and not specific to heroku
(The simple-stupid answer to t...
Is pass-by-value a reasonable default in C++11?
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138
It's a reasonable default if you need to make a copy inside the body. This is what Dave Abraham...
Oracle Differences between NVL and Coalesce
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316
COALESCE is more modern function that is a part of ANSI-92 standard.
NVL is Oracle specific, ...
How to get the insert ID in JDBC?
... statement.setString(2, user.getPassword());
statement.setString(3, user.getEmail());
// ...
int affectedRows = statement.executeUpdate();
if (affectedRows == 0) {
throw new SQLException("Creating user failed, no rows affected.");
}
tr...