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How to calculate time elapsed in bash script?
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The use of long number of seconds is valid and documented here:
https://www.gnu.org/software/coreutils/manual/html_node/Examples-of-date.html#Examples-of-date
Busybox date
A tool used in smaller devices (a very small executable to install): Busybox.
Either make a link to busybox called date:...
Differences between Intent and PendingIntent
...g a URI
Intent i = new Intent(Intent.ACTION_VIEW,
Uri.parse("http://www.example.com"));
// Starts Implicit Activity
startActivity(i);
Pending Intent
A PendingIntent is a token that you give to a foreign application (e.g. NotificationManager, AlarmManager, Home Screen AppWidgetManager,...
Python logging not outputting anything
...ticle containing this information expressed better than my answer:
https://www.digitalocean.com/community/tutorials/how-to-use-logging-in-python-3
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JavaScript: What are .extend and .prototype used for?
...ts from other objects. See http://api.jquery.com/jQuery.extend/ or http://www.prototypejs.org/api/object/extend for some examples.
.prototype refers to the "template" (if you want to call it that) of an object, so by adding methods to an object's prototype (you see this a lot in libraries to add t...
What is Java String interning?
...eneration, and you risk
running out of PermGen space.
--
From: http://www.codeinstructions.com/2009/01/busting-javalangstringintern-myths.html
From JDK 7 (I mean in HotSpot), something has changed.
In JDK 7, interned strings are no longer allocated in the permanent generation of the Jav...
How to pass the values from one activity to previous activity
...ke SQL syntax, transactions and prepared statements.
Tutorials -- http://www.vogella.com/articles/AndroidSQLite/article.html
B. Shared Preferences
Suppose you want to store username. So there will be now two thing a Key Username, Value Value.
How to store
// Create object of SharedPreferences...
ruby on rails f.select options with custom attributes
...ading the rails source. https://web.archive.org/web/20130128223827/http://www.pogodan.com/blog/2011/02/24/custom-html-attributes-in-options-for-select
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android button selector
...;/selector>
For more information i implemented using this link
http://www.blazin.in/2016/03/how-to-use-selectors-for-botton.html
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Difference between git pull and git pull --rebase
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and merges are how they flow back upwards.
For details refer - http://www.derekgourlay.com/archives/428
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How to get error message when ifstream open fails
... as of C++11 std::ios_base::failure inherits from system_error (see http://www.cplusplus.com/reference/ios/ios_base/failure/), which contains both the error code and message that strerror(errno) would return.
std::ifstream f;
// Set exceptions to be thrown on failure
f.exceptions(std::ifstream::fa...