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Service vs IntentService in the Android platform
...ded (Intent triggered tasks).
How to trigger?
The Service is triggered by calling method startService().
The IntentService is triggered using an Intent, it spawns a new worker thread and the method onHandleIntent() is called on this thread.
Triggered From
The Service and IntentService may be...
How do I increase the scrollback buffer in a running screen session?
...an page explains that you can enter command line mode in a running session by typing Ctrl+A, :, then issuing the scrollback <num> command.
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Order a List (C#) by many fields? [duplicate]
I want to order a List of objects in C# by many fields, not just by one. For example, let's suppose I have a class called X with two Attributes, A and B, and I have the following objects, in that order:
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Sorting an ArrayList of objects using a custom sorting order
...u need to let Contact implement Comparable. Assuming that you want to sort by default on name, then do (nullchecks omitted for simplicity):
public class Contact implements Comparable<Contact> {
private String name;
private String phone;
private Address address;
public int co...
LINQ order by null column where order is ascending and nulls should be last
I'm trying to sort a list of products by their price.
10 Answers
10
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How can I remove duplicate rows?
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Assuming no nulls, you GROUP BY the unique columns, and SELECT the MIN (or MAX) RowId as the row to keep. Then, just delete everything that didn't have a row id:
DELETE FROM MyTable
LEFT OUTER JOIN (
SELECT MIN(RowId) as RowId, Col1, Col2, Col3
F...
Purpose of returning by const value? [duplicate]
...erform a potentially expensive non-const operation on an object, returning by const-value prevents you from accidentally calling this operation on a temporary. Imagine that + returned a non-const value, and you could write:
(a + b).expensive();
In the age of C++11, however, it is strongly advised...
GitHub - List commits by author
Is there any way on GitHub to list all commits made by a single author, in the browser (neither locally, e.g. via git log , nor via the API)?
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python list by value not by reference [duplicate]
... a general understanding, it seems to be like the same problem encountered by the op at the second layer. How does it work internally?
– AsheKetchum
Feb 21 '17 at 15:59
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Is there a generator version of `string.split()` in Python?
...rsion of str.split()
:param source:
source string (unicode or bytes)
:param sep:
separator to split on.
:param regex:
if True, will treat sep as regular expression.
:returns:
generator yielding elements of string.
"""
if sep is None:
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