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Android: How can I validate EditText input?
... @TextRule, @NumberRule, @Required, @Regex, @Email, @IpAddress, @Password, etc.,
You can add these annotations to your UI widget references and perform validations. It also allows you to perform validations asynchronously which is ideal for situations such as checking for unique username from a rem...
Can “using” with more than one resource cause a resource leak?
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No.
The compiler will generate a separate finally block for each variable.
The spec (§8.13) says:
When a resource-acquisition takes the form of a
local-variable-declaration, it is possible to acquire multiple
resources of a given type. A using statement of the...
Linux - Replacing spaces in the file names
...umber of files in a folder, and I want to replace every space character in all file names with underscores. How can I achieve this?
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Is module __file__ attribute absolute or relative?
...a file. The __file__ attribute is not present for C modules that are statically linked into the interpreter; for extension modules loaded dynamically from a shared library, it is the pathname of the shared library file.
From the mailing list thread linked by @kindall in a comment to the question:
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How to parse/read a YAML file into a Python object? [duplicate]
...ame: Node 2
branch2-1:
name: Node 2-1
And you've installed PyYAML like this:
pip install PyYAML
And the Python code looks like this:
import yaml
with open('tree.yaml') as f:
# use safe_load instead load
dataMap = yaml.safe_load(f)
The variable dataMap now contains...
Collapse sequences of white space into a single character and trim string
...low, because it creates a new object for every substring and sends method calls to each of them.
– Georg Schölly
Jun 23 '11 at 18:55
2
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Django database query: How to get object by id?
Django automatically creates an id field as primary key.
6 Answers
6
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Just what is Java EE really? [closed]
...scanned only once for all your classes instead of every library (EJB, JPA, etc) doing this scanning over and over itself. Also because of that, CDI annotations can be applied to EJB beans and JPA entity managers can be injected into them.
Why do I need something massive as JBoss just to compile sim...
scp or sftp copy multiple files with single command
... Does this work if my destination is root and I'm doing the etc directory like for example: scp -r /backups/etc root@linuxbox:/ where my source is a very sparse directory with things like "hosts" and nginx/sites-available etc ?
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How to detect if a script is being sourced
I have a script where I do not want it to call exit if it's being sourced.
17 Answers
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