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java: HashMap not working
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int is a primitive type, you can read what does mean a primitive type in java here, and a Map is an interface that has to objects as input:
public interface Map<K extends Object, V extends Object>
object means a class, and it means also that you can...
regex for zip-code
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@ProVega: Reading the comments on the (now deleted) answer you linked to, that appears to be incorrect. For example, 00544 is a valid zip code; 544 is not.
– Keith Thompson
Dec 5 '14 at 20:59
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Best way to merge two maps and sum the values of same key?
...e left side of ++ (here map1) by (k,v) from the right side map, if (k,_) already exists in the left side map (here map1), e.g. Map(1->1) ++ Map(1->2) results in Map(1->2)
– Lutz
Aug 17 '11 at 9:49
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How to configure a HTTP proxy for svn
...ate two versions of the config file and scripts which allow you to switch. Read your OSs docs how to hook into the network discovery mechanism and execute the correct script when your laptop notices where it is.
– Aaron Digulla
Oct 1 '14 at 15:36
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Checking whether a variable is an integer or not [duplicate]
...objects with the necessary and sufficient attributes, but you will have to read the docs on how to use it.
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Collection versus List what should you use on your interfaces?
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This response is dead on. Another good read on the subject can be found here: blogs.msdn.com/fxcop/archive/2006/04/27/…
– senfo
Nov 7 '08 at 15:58
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Which is fastest? SELECT SQL_CALC_FOUND_ROWS FROM `table`, or SELECT COUNT(*)
...LOCK TABLES. Third option and (best IMHO) is to rethink pagination. Please read: mariadb.com/kb/en/library/pagination-optimization
– Madhur Bhaiya
Oct 27 '19 at 3:05
add a com...
Is Response.End() considered harmful?
This KB Article says that ASP.NET's Response.End() aborts a thread.
9 Answers
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What is the difference between require_relative and require in Ruby?
...ire '/a.rb' and require_relative '/a.rb' both require the absolute path.
Reading the source
When the docs are not clear, I recommend that you take a look at the sources (toggle source in the docs). In some cases, it helps to understand what is going on.
require:
VALUE rb_f_require(VALUE obj, VA...
Postgresql SELECT if string contains
...~ operator.
SELECT id FROM TAG_TABLE WHERE 'aaaaaaaa' ~ tag_name;
Worth reading through Difference between LIKE and ~ in Postgres to understand the difference.
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