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What is the difference between cout, cerr, clog of iostream header in c++? When to use which one?
...order of their generation when both are directed to the same terminal/file/etc..
This contrasts with clog - if you write there it won't be buffered and isn't tied to anything, so it will buffer decent sized amounts of logging before flushing. This yields the highest throughput of messages, but mea...
...t; - is for Page directives, registering assemblies, importing namespaces, etc.
<%= %> - is short-hand for Response.Write (discussed here)
<%# %> - is used for data binding expressions.
<%: %> - is short-hand for Response.Write(Server.HTMLEncode()) ASP.net 4.0+
<%#: %> - is u...
What is a serialVersionUID and why should I use it?
...hods, readResolve/writeReplace() methods, serializableFields declarations, etc, to make sure that the stream remains compatible. Changing the actual serialVersionUID is a last resort, a counsel of despair.
– Marquis of Lorne
Dec 12 '12 at 0:59
...
How to emulate GPS location in the Android Emulator?
... Emulator console that lets you enter certain data like geo fixes, network etc.
How to use the console is extensively explained here.
To connect to the console open a command line and type
telnet localhost 5554
You then can use the geo command to set a latitude, longitude and if needed altitude...
What's the difference between an inverted index and a plain old index?
...her RDBMS Consult MySQL the docs). Indexing can also be related to caching etc.
Inverted index creates file with structure that is primarily intender for (fulltext) searching.
Inverted index consists of two main files:
Vocabulary
Occurences
In vocabulary are common words extracted from text (...
.NET WebAPI Serialization k_BackingField Nastiness
...are serializing it into a memory stream for some reason, doing deep copies etc), then you have to use both attributes in conjunction to prevent the backing field names:
[Serializable]
[DataContract]
public class Error
{
[DataMember]
public string Status { get; set; }
[DataMember]
pu...
CSS :after not adding content to certain elements
...t least in part. For example, an input element (incuding its font, colors, etc.) is largely controllable with CSS in modern browsers.
Current browsers (Firefox, IE, Chrome) do not seem to support the :after and :before pseudo-elements for empty elements other than hr. For hr, IE and Chrome place th...
Hashset vs Treeset
...o deal with the ordered set like first(), last(), headSet(), and tailSet() etc
Important points:
Both guarantee duplicate-free collection of elements
It is generally faster to add elements to the HashSet and then convert the collection to a TreeSet for a duplicate-free sorted traversal.
None of ...
Eclipse/Java code completion not working
...o previously suffering from Eclipse thinking my project was in 1.5 despite all options saying otherwise, so it must have been corrupted during this issue.
– Philip Guin
Jun 30 '13 at 6:51
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How to display gpg key details without importing it?
... ACK, this is very good, doesn't require local personal keyring etc. does display the key name... works best.
– Florian Heigl
Apr 30 '17 at 16:22
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