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What's the difference between UTF-8 and UTF-8 without BOM?
...other... In the end, unless you can memorize/find the encoding somehow, an array of bytes is just an array of bytes.
– paercebal
Sep 11 '11 at 18:57
19
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The order of elements in Dictionary
...
Associative arrays (aka, hash tables) are unordered, which means that the elements can be ordered in any way imaginable.
HOWEVER, you could fetch the array keys (only the keys), order that alphabetically (via a sort function) and then w...
Why .NET String is immutable? [duplicate]
...objects. For example, if you were implementing list which was backed by an array, a start index and a count, then the most expensive part of creating a sub-range would be copying the objects. However, if it was immutable then the sub-range object could reference the same array, with only the start i...
Java8: Why is it forbidden to define a default method for a method from java.lang.Object
...nothing. :) Another way to do it is to make something like Objects.hash(), Arrays.deepEquals() and Arrays.deepToString(). +1'd for @BrianGoetz's answer!
– Siu Ching Pong -Asuka Kenji-
Jan 10 '15 at 7:59
...
Is it possible to use raw SQL within a Spring Repository
...port org.springframework.data.repository.CrudRepository;
import java.util.ArrayList;
public interface UserInfoTestDao extends CrudRepository<UserInfoTest,Integer> {
@Query(value = "select id,name,roll_no from USER_INFO_TEST where rollNo = ?1", nativeQuery = true)
ArrayList<IUserPr...
How to print pandas DataFrame without index
...print dataframe without an index" question, you can set the index to be an array of empty strings (one for each row in the dataframe), like this:
blankIndex=[''] * len(df)
df.index=blankIndex
If we use the data from your post:
row1 = (123, '2014-07-08 00:09:00', 1411)
row2 = (123, '2014-07-08 00...
Regular Expression to match only alphabetic characters
...de:
preg_match('/^[A-Z]+$/i', "abcAbc^Xyz", $m);
var_dump($m);
Output:
array(0) {
}
Test case is for OP's comment that he wants to match only if there are 1 or more alphabets present in the input. As you can see in the test case that matches failed because there was ^ in the input string abcAb...
A positive lambda: '+[]{}' - What sorcery is this? [duplicate]
...
It is useful if you want to force decay of arrays or functions and if you want to force promotion of small integer types or unscoped enumerations.
– Johannes Schaub - litb
Sep 19 '13 at 9:17
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How to read XML using XPath in Java
...mployees Name.
Source Code
import java.io.IOException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.List;
import javax.xml.parsers.DocumentBuilder;
import javax.xml.parsers.DocumentBuilderFactory;
import javax.xml.parsers.ParserConfigurationException;
import javax.xml.xp...
What are the Ruby Gotchas a newbie should be warned about? [closed]
... false
(1..10) === (1..10) # false (the range does not include itself)
# arrays just match equal arrays, but they do not match included values!
[1,2,3] === [1,2,3] # true
[1,2,3] === 2 # false
# classes match their instances and instances of derived classes
String === "joe" # true
String ...