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How to implement an abstract class in ruby?
...you just call abstract_methods with the list of methods that are abstract, and when they get called by an instance of the abstract class, a NotImplementedError exception will be raised.
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Python - Create list with numbers between 2 values?
...nting by 0.5, the easiest option would probably be to use numpy's arange() and .tolist():
>>> import numpy as np
>>> np.arange(11, 17, 0.5).tolist()
[11.0, 11.5, 12.0, 12.5, 13.0, 13.5,
14.0, 14.5, 15.0, 15.5, 16.0, 16.5]
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Returning value from Thread
I have a method with a HandlerThread . A value gets changed inside the Thread and I'd like to return it to the test() method. Is there a way to do this?
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How to avoid installing “Unlimited Strength” JCE policy files when deploying an application?
...rectory (which may even be read-only due to permissions).
Skip the JCE API and use another cryptography library such as Bouncy Castle. This approach requires an extra 1MB library, which may be a significant burden depending on the application. It also feels silly to duplicate functionality included ...
git revert back to certain commit [duplicate]
... answered Jul 22 '11 at 18:12
AndyAndy
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Splitting a Java String by the pipe symbol using split(“|”)
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You need
test.split("\\|");
split uses regular expression and in regex | is a metacharacter representing the OR operator. You need to escape that character using \ (written in String as "\\" since \ is also a metacharacter in String literals and require another \ to escape it).
You...
Undo scaffolding in Rails
Is there any way to 'undo' the effects of a scaffold command in Rails?
24 Answers
24
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Sorting HashMap by values [duplicate]
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Just a kick-off example. This way is more useful as it sorts the HashMap and keeps the duplicate values as well.
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Merge (with squash) all changes from another branch as a single commit
...rom Git merge
--squash
--no-squash
Produce the working tree and index state as if a real merge
happened (except for the merge
information), but do not actually make
a commit or move the HEAD, nor record
$GIT_DIR/MERGE_HEAD to cause the next
git commit command to create a mer...
String.Empty versus “” [duplicate]
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As the duplicate say, its not different in .NET 2 and above.
– JoeBilly
May 28 '10 at 12:27
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