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Why does Ruby have both private and protected methods?
...
# Comparable module will use this comparison method for >, <, ==, etc.
def <=>(other_dwarf)
# One dwarf is allowed to call this method on another
beard_strength <=> other_dwarf.beard_strength
end
def greet
"Lo, I am #{name}, and have mined these #{age} years.\...
JAX-RS — How to return JSON and HTTP status code together?
...not authorized (401)
there is a problem with the database connection (500)
etc..
a) Throw an exception
In that case, I think that the cleanest way to handle the problem is to throw an exception. This exception will be handled by an ExceptionMapper, that will translate the exception into a respons...
Android accelerometer accuracy (Inertial navigation)
... speeds, with different steps, and puts their phones in different pockets, etc. Surely to implement this in the real world would require number-crunching to be handled server-side.
If you did use GPS for the initial baseline, part of the problem there is GPS tends to have it's own migrations over t...
How can you use an object's property in a double-quoted string?
...e command's 1st token is a number, variable, statement keyword (if, while, etc), unary operator, {, etc... then the parsing mode is Expression otherwise Argument (up to a command terminator).
– Uber Kluger
Aug 7 at 3:30
...
Why are const parameters not allowed in C#?
...he CLR should support const correctness (VB, JavaScript, Python, Ruby, F#, etc.) That's not going to happen.
Const correctness is pretty much a language feature only present in C++. So it pretty much boils down to the same argumentation as to why the CLR does not require checked exceptions (which ...
Should accessing SharedPreferences be done off the UI Thread?
...oncurrency (and a lot of Android devices run on yaffs... Droid, Nexus One, etc.) so if you avoid disk, you avoid getting stuck behind other in-flight or pending disk operations.
so you'll probably want to load the SharedPreferences during your onCreate() and re-use the same instance, avoiding the st...
RESTful Alternatives to DELETE Request Body
...n't understand what the RESTFUL idea is on how we should check concurrency etc. Concurrency checks do not belong on the client.
– Dirk Wessels
Feb 6 at 22:32
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Finding a branch point with Git?
...rate can also be interesting; it adds an indication of branch names, tags, etc. Not adding this to the command-line above since the output below doesn't reflect its use.)
which shows (assuming git config --global color.ui auto):
Or, in straight text:
* a9546a2 merge from topic back to maste...
Checking if an Android application is running in the background
...to, but if your activity is already extended from MapActivity/ListActivity etc. you still need to write the following by hand):
@Override
protected void onResume() {
super.onResume();
MyApplication.activityResumed();
}
@Override
protected void onPause() {
super.onPause();
MyApplication.ac...
Should I use a data.frame or a matrix?
...ables) can be expected to be of different types (numeric/character/logical etc.). Matrices are for data of the same type.
Consequently, the choice matrix/data.frame is only problematic if you have data of the same type.
The answer depends on what you are going to do with the data in data.frame/ma...