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How do I check if an integer is even or odd? [closed]
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31 Answers
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What causes a java.lang.ArrayIndexOutOfBoundsException and how do I prevent it?
...f the array.
So for example:
int[] array = new int[5];
int boom = array[10]; // Throws the exception
As for how to avoid it... um, don't do that. Be careful with your array indexes.
One problem people sometimes run into is thinking that arrays are 1-indexed, e.g.
int[] array = new int[5];
// ...
How to use split?
...ar substr = str.split(' -- ');
// substr[0] contains "something"
// substr[1] contains "something_else"
If this value is in some field you could also do:
tRow.append($('<td>').text($('[id$=txtEntry2]').val().split(' -- ')[0])));
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Is calculating an MD5 hash less CPU intensive than SHA family functions?
Is calculating an MD5 hash less CPU intensive than SHA-1 or SHA-2 on "standard" laptop x86 hardware? I'm interested in general information, not specific to a certain chip.
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How do you reindex an array in PHP?
...hich I would like to reindex so the keys are reversed (ideally starting at 1):
21 Answers
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How to write DataFrame to postgres table?
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127
Starting from pandas 0.14 (released end of May 2014), postgresql is supported. The sql module ...
How to check if field is null or empty in MySQL?
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194
Either use
SELECT IF(field1 IS NULL or field1 = '', 'empty', field1) as field1
from tablenam...
Boolean literals in PowerShell
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174
$true and $false.
Those are constants, though. There are no language-level literals for boole...
What is the Scala annotation to ensure a tail recursive function is optimized?
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119
From the "Tail calls, @tailrec and trampolines" blog post:
In Scala 2.8, you will also ...
How to convert comma-delimited string to list in Python?
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edited Apr 18 '13 at 0:36
answered Oct 21 '11 at 1:35
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