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Bytes of a string in Java
In Java, if I have a String x , how can I calculate the number of bytes in that string?
8 Answers
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What is the cleanest way to ssh and run multiple commands in Bash?
I already have an ssh agent set up, and I can run commands on an external server in Bash script doing stuff like:
12 Answer...
Android: How can I validate EditText input?
I need to do form input validation on a series of EditTexts. I'm using OnFocusChangeListeners to trigger the validation after the user types into each one, but this doesn't behave as desired for the last EditText.
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Android: Scale a Drawable or background image?
On a layout I want to scale the background image (keeping its aspect ratio) to the space allocated when the page gets created. Does anyone have an idea how to do this?
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getApplication() vs. getApplicationContext()
I couldn't find a satisfying answer to this, so here we go: what's the deal with Activity/Service.getApplication() and Context.getApplicationContext() ?
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What is the proper way to display the full InnerException?
What is the proper way to show my full InnerException .
9 Answers
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How to get an enum value from a string value in Java?
Say I have an enum which is just
27 Answers
27
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What is the optimal length for user password salt? [closed]
Any salt at all will obviously help when salting and hashing a user's password. Are there any best practices for how long the salt should be? I'll be storing the salt in my user table, so I would like the best tradeoff between storage size and security. Is a random 10 character salt enough? Or ...
Java Immutable Collections
From Java 1.6 Collection Framework documentation :
6 Answers
6
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What special characters must be escaped in regular expressions?
I am tired of always trying to guess, if I should escape special characters like ' ()[]{}| ' etc. when using many implementations of regexps.
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