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How to create a new object instance from a Type
One may not always know the Type of an object at compile-time, but may need to create an instance of the Type .
12 Ans...
How do I convert a String to an int in Java?
... do something else if you like.)
Alternatively, you can use an Ints method from the Guava library, which in combination with Java 8's Optional, makes for a powerful and concise way to convert a string into an int:
import com.google.common.primitives.Ints;
int foo = Optional.ofNullable(myString)
.m...
How should I validate an e-mail address?
What's a good technique for validating an e-mail address (e.g. from a user input field) in Android? org.apache.commons.validator.routines.EmailValidator doesn't seem to be available. Are there any other libraries doing this which are included in Android already or would I have to use RegExp?
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Extract a part of the filepath (a directory) in Python
......
And you can continue doing this as many times as necessary...
Edit: from os.path, you can use either os.path.split or os.path.basename:
dir = os.path.dirname(os.path.dirname(file)) ## dir of dir of file
## once you're at the directory level you want, with the desired directory as the final p...
runOnUiThread vs Looper.getMainLooper().post in Android
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The following behaves the same when called from background threads:
using Looper.getMainLooper()
Runnable task = getTask();
new Handler(Looper.getMainLooper()).post(task);
using Activity#runOnUiThread()
Runnable task = getTask();
runOnUiThread(task);
The only ...
What's the key difference between HTML 4 and HTML 5?
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HTML5 has several goals which differentiate it from HTML4.
Consistency in Handling Malformed Documents
The primary one is consistent, defined error handling. As you know, HTML purposely supports 'tag soup', or the ability to write malformed code and have it corrected i...
How do I list all remote branches in Git 1.7+?
... This answer is correct but misleading, the first thing users coming here from search engines should see is: git branch -r since that is the correct and simplest answer, the asker had a special case where he modified the behavior of his git branch -r that most users coming here won't have
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proper hibernate annotation for byte[]
...ty?
It depends on what you want. JPA can persist a non annotated byte[]. From the JPA 2.0 spec:
11.1.6 Basic Annotation
The Basic annotation is the simplest
type of mapping to a database column.
The Basic annotation can be applied
to a persistent property or instance
variable of ...
Difference between git checkout --track origin/branch and git checkout -b branch origin/branch
...t to e.g. checkout.defaultRemote=origin to always checkout remote branches from there if <branch> is ambiguous but exists on the 'origin' remote.
Here, '-c' is the new '-b'.
First, some background: Tracking means that a local branch has its upstream set to a remote branch:
# git config b...
How efficient can Meteor be while sharing a huge collection among many clients?
...s.
For example, you can write a publish function that reads a GPS position
from a device inside a Meteor.setInterval, or polls a legacy REST API
from another web service. In those cases, you'd emit changes to the
merge box by calling the low-level added, changed and removed DDP API.
The Mongo driv...