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Class.forName() vs ClassLoader.loadClass() - which to use for dynamic loading? [duplicate]
When dynamically loading a class, when is it appropriate to use
6 Answers
6
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“Prevent saving changes that require the table to be re-created” negative effects
...and re-create because it doesn't have to.
The problem is that enumerating all of the cases and determining which side of the line they fall on will be quite tedious.
This is why I like to use ALTER TABLE in a query window, instead of visual designers that hide what they're doing (and quite frankly...
Cleaning `Inf` values from an R dataframe
...ption 1
Use the fact that a data.frame is a list of columns, then use do.call to recreate a data.frame.
do.call(data.frame,lapply(DT, function(x) replace(x, is.infinite(x),NA)))
Option 2 -- data.table
You could use data.table and set. This avoids some internal copying.
DT <- data.table(dat)...
How do I expand the output display to see more columns of a pandas DataFrame?
...: None] [currently: None]
: float or None
if set to a float value, all float values smaller then the given threshold
will be displayed as exactly 0 by repr and friends.
display.colheader_justify: [default: right] [currently: right]
: 'left'/'right'
Controls the justification ...
Weird Integer boxing in Java
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The true line is actually guaranteed by the language specification. From section 5.1.7:
If the value p being boxed is true,
false, a byte, a char in the range
\u0000 to \u007f, or an int or short
number between -128 and 127, then let
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Configure apache to listen on port other than 80
...ttpd.conf here fileuploading.net/860467 nothing like WAMP, Xampp, Appserv. All I have done is compiling apache, tomcat and jk connector from source and trying my best to make them work together.
– vivek.m
Oct 15 '10 at 11:06
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UIButton Long Press Event
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UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPress:)];
[self.button addGestureRecognizer:longPress];
[longPress release];
And then implement the method that handles the gesture
- (void)longPress:(UILongPressGestureRecog...
Can a CSV file have a comment?
Is there any official way to allow a CSV formatted file to allow comments, either on its own line OR at the end of a line?
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How does Spring Data JPA differ from Hibernate for large projects?
...a magic that helps with complex queries. It is strange at first and you totally skip it in the docs but it is really powerful and useful.
It involves creating a custom Repository and a custom `RepositoryImpl' and telling Spring where to find it. Here is an example:
Configuration class - point to y...
Capturing console output from a .NET application (C#)
How do I invoke a console application from my .NET application and capture all the output generated in the console?
8 Answ...