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Convert data.frame columns from factors to characters
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ShaneShane
89.7k3131 gold badges215215 silver badges215215 bronze badges
28
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How to handle back button in activity
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You can handle it like this:
for API level 5 and greater
@Override
public void onBackPressed() {
// your code.
}
older than API 5
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
if (keyCode == KeyEvent.KEYCODE_BACK) {
// your code...
How to use cURL to get jSON data and decode the data?
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Shiny
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answered May 22 '13 at 20:47
Wesley Schleumer d...
split string only on first instance of specified character
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Chris Happy
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answered Jan 5 '11 at 18:30
MarkMark
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how to check and set max_allowed_packet mysql variable [duplicate]
...ket=16777216;
You can read about it here http://dev.mysql.com/doc/refman/5.1/en/packet-too-large.html
EDIT
The [mysqld] is necessary to make the max_allowed_packet working since at least mysql version 5.5.
Recently setup an instance on AWS EC2 with Drupal and Solr Search Engine, which required...
Having both a Created and Last Updated timestamp columns in MySQL 4.0
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From the MySQL 5.5 documentation:
One TIMESTAMP column in a table can have the current timestamp as the default value for initializing the column, as the auto-update value, or both. It is not possible to have the current timestamp be th...
What encoding/code page is cmd.exe using?
...he output in the default codepage? Total garbage!
Z:\andrew\projects\sx\1259084>chcp
Active code page: 850
Z:\andrew\projects\sx\1259084>java Foo
== UTF-8
= no bom
ASCII abcde xyz
German ├ñ├Â├╝ ├ä├û├£ ├ƒ
Polish ąęźżńł
Russian ð░...
PHP Constants Containing Arrays?
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504
NOTE: while this is the accepted answer, it's worth noting that in PHP 5.6+ you can have const...
Automatically deleting related rows in Laravel (Eloquent ORM)
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215
I believe this is a perfect use-case for Eloquent events (http://laravel.com/docs/eloquent#model...
String.format() to format double in java
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David TangDavid Tang
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36
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