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What is the concept of erasure in generics in Java?
...mpiler generates extra casts where necessary. At execution time, a List<String> and a List<Date> are exactly the same; the extra type information has been erased by the compiler.
Compare this with, say, C#, where the information is retained at execution time, allowing code to contain e...
Generating a random & unique 8 character string using MySQL
...
This problem consists of two very different sub-problems:
the string must be seemingly random
the string must be unique
While randomness is quite easily achieved, the uniqueness without a retry loop is not. This brings us to concentrate on the uniqueness first. Non-random uniqueness c...
Receive JSON POST with PHP
... but it isn't in the json.
EDIT
Maybe also worth trying to echo the json string from php://input.
echo file_get_contents('php://input');
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How to pass optional arguments to a method in C++?
...
Can you pls provide some example related to string ?
– Swapnil Gupta
Sep 24 '10 at 4:20
...
Lists in ConfigParser
...
There is nothing stopping you from packing the list into a delimited string and then unpacking it once you get the string from the config. If you did it this way your config section would look like:
[Section 3]
barList=item1,item2
It's not pretty but it's functional for most simple lists.
...
How to get city name from latitude and longitude coordinates in Google Maps?
... a Latitude and longitude :
public class getReverseGeoCoding {
private String Address1 = "", Address2 = "", City = "", State = "", Country = "", County = "", PIN = "";
public void getAddress() {
Address1 = "";
Address2 = "";
City = "";
State = "";
...
int a[] = {1,2,}; Weird comma allowed. Any particular reason?
...at the end.
e.g.
for_each(my_inits.begin(), my_inits.end(),
[](const std::string& value) { std::cout << value << ",\n"; });
There isn't really any advantage for the programmer.
P.S. Though it is easier to autogenerate the code this way, I actually always took care not to put the ...
Select SQL Server database size
...13.04 MB
Function:
ALTER FUNCTION [dbo].[GetDBSize]
(
@db_name NVARCHAR(100)
)
RETURNS TABLE
AS
RETURN
SELECT
database_name = DB_NAME(database_id)
, log_size_mb = CAST(SUM(CASE WHEN type_desc = 'LOG' THEN size END) * 8. / 1024 AS DECIMAL(8,2))
, row_size_mb = CAST(SUM...
How to insert a newline in front of a pattern?
...Linux and OS X:
sed 's/regexp/\'$'\n/g'
In general, for $ followed by a string literal in single quotes bash performs C-style backslash substitution, e.g. $'\t' is translated to a literal tab. Plus, sed wants your newline literal to be escaped with a backslash, hence the \ before $. And finally, ...
Signed to unsigned conversion in C - is it always safe?
... need to subtract the given number from max value (256 in case of unsigned char)? For example: 140 when converted to signed number becomes -116. But 20 becomes 20 itself. So any easy trick here?
– Jon Wheelock
Oct 18 '15 at 14:01
...