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Choosing between std::map and std::unordered_map [duplicate]
...still want to use the good old map over unordered_map on systems where it actually exists? Are there any obvious situations that I cannot immediately see?
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Regex - how to match everything except a particular pattern
How do I write a regex to match any string that doesn't meet a particular pattern? I'm faced with a situation where I have to match an (A and ~B) pattern.
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What is WebKit and how is it related to CSS?
More recently, I have been seeing questions with the tag "webkit". Such questions usually tend to be web-based questions relating to CSS, jQuery, layouts, cross-browers compatibility issues, etc...
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Converting string into datetime
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datetime.strptime is the main routine for parsing strings into datetimes. It can handle all sorts of formats, with the format determined by a format string you give it:
from datetime import datetime
datetime_object = datetime.strptime('Jun 1 2005 1:33PM', '%b %d %Y %I:%M%p')
The resulting date...
How to force ViewPager to re-instantiate its items [duplicate]
I am using ViewPager to allow user to swipe between its views. Is there a way how to force this ViewPager to reload/re-instantiate its views in case that they are no longer valid or needs to be refreshed? I tried to call notifyDataSetChanged() on its adapter but this does not invoke instantia...
When to use generic methods and when to use wild-card?
...m OracleDocGenericMethod . I am pretty confused about the comparison when it says when to use wild-card and when to use generic methods.
Quoting from the document.
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How to pass all arguments passed to my bash script to a function of mine? [duplicate]
...ere is an example.
abc "$@"
When using $@, you should (almost) always put it in double-quotes to avoid misparsing of arguments containing spaces or wildcards (see below). This works for multiple arguments. It is also portable to all POSIX-compliant shells.
It is also worth nothing that $0 (general...
How do I print a double value without scientific notation using Java?
I want to print a double value in Java without exponential form.
14 Answers
14
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Easier way to debug a Windows service
...ows Service Control Manager and then attaching the debugger to the thread? It's kind of cumbersome and I'm wondering if there is a more straightforward approach.
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What does “program to interfaces, not implementations” mean?
...be done. This can be used to change the behavior of a program at run-time. It also helps you to write far better programs from the maintenance point of view.
Here's a basic example for you.
public enum Language
{
English, German, Spanish
}
public class SpeakerFactory
{
public static ISpea...