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Shallow copy of a Map in Java
...ot a HashMap), you should use Map#putAll():
Copies all of the mappings from the specified map to this map
(optional operation). The effect of this call is equivalent to that of
calling put(k, v) on this map once for each mapping from key k to
value v in the specified map.
Example:
// Ha...
What is “the inverse side of the association” in a bidirectional JPA OneToMany/ManyToOne association
...rally contains) the connection (information). This is exactly the opposite from the OO/model world.
This may help to understand:
public class Customer {
// This field doesn't exist in the database
// It is simulated with a SQL query
// "OO speak": Customer owns the orders
priva...
MongoDB: update every document on one field
...ongo only affects the first document and to update all documents resulting from the query one needs to use 'Multi' update flag. Sample code follows...
var collection = db.GetCollection("Foo");
var query = Query.GTE("No", 1); // need to construct in such a way that it will give all 20K //docs.
var u...
Custom error pages on asp.net MVC3
...hod. It's of type IController so there's absolutely nothing preventing you from calling this method. And by the way Execute was protected in the Controller class as well in MVC 3, so there's no change in this regard.
– Darin Dimitrov
Oct 7 '13 at 10:29
...
How do I combine two data frames?
...ta frames. I have a initial data frame, say D . I extract two data frames from it like this:
6 Answers
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FFmpeg: How to split video efficiently?
...f no output filename format is given, it will be computed\
automatically from input filename"
}
IN_FILE="$1"
OUT_FILE_FORMAT="$3"
typeset -i CHUNK_LEN
CHUNK_LEN="$2"
DURATION_HMS=$(ffmpeg -i "$IN_FILE" 2>&1 | grep Duration | cut -f 4 -d ' ')
DURATION_H=$(echo "$DURATION_HMS" | cut -d ...
Covariance, Invariance and Contravariance explained in plain English?
...glish and German Wikipedia article, and some other blog posts and articles from IBM.
3 Answers
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Any good boolean expression simplifiers out there? [closed]
...
Try Logic Friday 1 It includes tools from the Univerity of California (Espresso and misII) and makes them usable with a GUI. You can enter boolean equations and truth tables as desired. It also features a graphical gate diagram input and output.
The minimizatio...
Iterate over object keys in node.js
...s :( And i can not use forEach since each iteration step should be invoked from an async setTimeout.
– stewe
Sep 16 '11 at 8:41
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How do i put a border on my grid in WPF?
... and Border because they have no Template property as they are not derived from Control, but from Panel and Decorator. Reed Copsey has the (pretty simple) solution.
– gehho
May 5 '10 at 6:37
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