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Safe String to BigDecimal conversion
...Constructor in the BigDecimal class does not support custom formats. The example I gave in the question uses the custom format (commas). You can't parse that to BigDecimal using it's constructor.
– bezmax
Sep 20 '10 at 14:56
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Determine on iPhone if user has enabled push notifications
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Call enabledRemoteNotificationsTypes and check the mask.
For example:
UIRemoteNotificationType types = [[UIApplication sharedApplication] enabledRemoteNotificationTypes];
if (types == UIRemoteNotificationTypeNone)
// blah blah blah
iOS8 and above:
[[UIApplication sharedApplicat...
git error: failed to push some refs to remote
...e GitHub repo has seen new commits pushed to it, while you were working locally, I would advise using:
git pull --rebase
git push
The full syntax is:
git pull --rebase origin master
git push origin master
With Git 2.6+ (Sept. 2015), after having done (once)
git config --global pull.rebase tru...
Shell equality operators (=, ==, -eq)
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Boo, hiss re: showing (nonportable) == in the code samples and only mentioning (portable, standardized) = underneath.
– Charles Duffy
Dec 5 '19 at 16:16
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How do I make an http request using cookies on Android?
..., and I was able to figure out how to do it using the "Form based logon" example in the HttpClient docs:
https://github.com/apache/httpcomponents-client/blob/master/httpclient5/src/test/java/org/apache/hc/client5/http/examples/ClientFormLogin.java
import java.util.ArrayList;
import java.util.List;
...
Difference between binary tree and binary search tree
...n the difference between binary tree and binary search tree with an example ?
12 Answers
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Factory Pattern. When to use factory methods?
...l object you are trying to create relies on several other objects. E.g, in PHP: Suppose you have a House object, which in turn has a Kitchen and a LivingRoom object, and the LivingRoom object has a TV object inside as well.
The simplest method to achieve this is having each object create their chi...
What is the purpose of setting a key in data.table?
... the entire data.table to be reordered just to add/update column(s). For example,
## compare
setkey(X, a, b) # why physically reorder X to just add/update a column?
X[Y, col := i.val]
## to
X[Y, col := i.val, on=c("a", "b")]
In the second case, we did not have to reorder. It's not computing th...
CSS Selector “(A or B) and C”?
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At that point, I might as well just use PHP printing "Content-type: text/css"
– Josh
Sep 22 '11 at 15:53
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Pointer vs. Reference
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It lacks the guideline when:... "when to use const &"... The guideline 2 should be written "for [in] values, only pass by pointer if NULL is valid. Otherwise, use const reference (or for "small" objects, copy), or reference if it is an [out] value. I'm monitoring this post...