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Lambda expression to convert array/List of String to array/List of Integers
...p(func).toArray(generator);
}
And use it like this:
//for lists
List<String> stringList = Arrays.asList("1","2","3");
List<Integer> integerList = convertList(stringList, s -> Integer.parseInt(s));
//for arrays
String[] stringArr = {"1","2","3"};
Double[] doubleArr = convertArray(s...
How can I find the version of the Fedora I use?
...something like:
$ source /etc/os-release
$ echo $ID
fedora
$ echo $VERSION_ID
17
$ echo $VERSION
17 (Beefy Miracle)
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How to tell if a string is not defined in a Bash shell script
If I want to check for the null string I would do
12 Answers
12
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Most efficient way to increment a Map value in Java
....
ContainsKey
import java.util.HashMap;
import java.util.Map;
...
Map<String, Integer> freq = new HashMap<String, Integer>();
...
int count = freq.containsKey(word) ? freq.get(word) : 0;
freq.put(word, count + 1);
TestForNull
import java.util.HashMap;
import java.util.Map;
...
Map&l...
Git search for string in a single file's history
...g method called bar , so I want to search the history of foo.rb for the string bar to see if it was ever defined in the past.
...
What exactly is Type Coercion in Javascript?
... + 5
Uh oh. In JavaScript, + can mean add two numbers or concatenate two strings. In this case, we have neither two numbers nor two strings. We only have one number and an object. According to JavaScript's type rules, this makes no logical sense. Since it’s forgiving about you breaking its rules...
MySQL: Sort GROUP_CONCAT values
In short: Is there any way to sort the values in a GROUP_CONCAT statement?
2 Answers
2...
Difference between CouchDB and Couchbase
...eople may find unacceptable).
CouchDB is an open-source/free software (no strings attached) project of The Apache Software Foundation and is released under the Apache License, Version 2.0 (DFSG-compatible, FSF-approved, OSI-approved, GPL-compatible, non-copyleft, commercial-friendly).
Philosophy
...
What is the fastest substring search algorithm?
...n 2011, I believe it may very well be the "Simple Real-Time Constant-Space String Matching" algorithm by Dany Breslauer, Roberto Grossi, and Filippo Mignosi.
Update:
In 2014 the authors published this improvement: Towards optimal packed string matching.
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Find CRLF in Notepad++
...on
Regular expressions use the characters ^ and $ to anchor the match string to the beginning or end of the line. For instance, searching for return;$ will find occurrences of "return;" that occur with no subsequent text on that same line. The anchor characters work identically in all file form...