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Sending and Receiving SMS and MMS in Android (pre Kit Kat Android 4.4)
...d the exact same problem you describe above (Galaxy Nexus on t-mobile USA) it is because mobile data is turned off.
In Jelly Bean it is:
Settings > Data Usage > mobile data
Note that I have to have mobile data turned on PRIOR to sending an MMS OR receiving one. If I receive an MMS with mobil...
Pushing an existing Git repository to SVN
I've been doing all my work in Git and pushing to GitHub. I've been very happy with both the software and the site, and I have no wish to change my working practices at this point.
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Difference between using Throwable and Exception in a try catch
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By catching Throwable it includes things that subclass Error. You should generally not do that, except perhaps at the very highest "catch all" level of a thread where you want to log or otherwise handle absolutely everything that can go wrong. It ...
How to escape a JSON string to have it in a URL?
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It seems though that it encodes more characters than necessary (when I paste the link in Firefox, some characters are reverted back (i.e. {["). Is there a way to encode only the characters necessary, so that I can shorten my ...
How to check if a URL is valid
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Use the URI module distributed with Ruby:
require 'uri'
if url =~ URI::regexp
# Correct URL
end
Like Alexander Günther said in the comments, it checks if a string contains a URL.
To check if the string is a URL, use:
url =~ /\A#{URI::regexp}\z/
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Converting JSON data to Java object
I want to be able to access properties from a JSON string within my Java action method. The string is available by simply saying myJsonString = object.getJson() . Below is an example of what the string can look like:
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Finding all possible combinations of numbers to reach a given sum
How would you go about testing all possible combinations of additions from a given set N of numbers so they add up to a given final number?
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Git push error: Unable to unlink old (Permission denied)
In the remote server I have a post-receive hook set up in order to make a git checkout of my repository:
14 Answers
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When should a class be Comparable and/or Comparator?
...tor vs Comparable
Comparable
A comparable object is capable of comparing itself with another object. The class itself must implements the java.lang.Comparable interface in order to be able to compare its instances.
Comparator
A comparator object is capable of comparing two different objects. The...
What is Java String interning?
What is String Interning in Java, when I should use it, and why ?
7 Answers
7
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