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Java regex email
...\.[A-Z]{2,6}$", Pattern.CASE_INSENSITIVE);
public static boolean validate(String emailStr) {
Matcher matcher = VALID_EMAIL_ADDRESS_REGEX.matcher(emailStr);
return matcher.find();
}
Works fairly reliably.
s...
How are software license keys generated?
...t a matter of making up an algorithm for which CD keys (which could be any string) are easy to generate and easy to verify, but the ratio of valid-CD-keys to invalid-CD-keys is so small that randomly guessing CD keys is unlikely to get you a valid one.
INCORRECT WAY TO DO IT:
Starcraft and Half-li...
Java: method to get position of a match in a String?
...
The family of methods that does this are:
int indexOf(String str)
indexOf(String str, int fromIndex)
int lastIndexOf(String str)
lastIndexOf(String str, int fromIndex)
Returns the index within this string of the first (or last) occurrence of the specified substring [s...
Keep only first n characters in a string?
Is there a way in JavaScript to remove the end of a string?
7 Answers
7
...
How do I split a string so I can access item x?
Using SQL Server, how do I split a string so I can access item x?
44 Answers
44
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Static nested class in Java, why?
...ass(1);
}
}
}
public class Test {
public static void main(String[] args) {
OuterClass.InnerClass.test();
// OuterClass outer = new OuterClass(1); // It is not possible to create outer instance from outside.
}
}
This will output x: 1
...
Determine .NET Framework version for dll
...eflection.Assembly.ReflectionOnlyLoadFrom("C:\path\assembly.dll")
Dim s As String = a.ImageRuntimeVersion
From the command line, starting in v2.0, ildasm.exe will show it if you double-click on "MANIFEST" and look for "Metadata version". Determining an Image’s CLR Version
...
How do I replace multiple spaces with a single space in C#?
How can I replace multiple spaces in a string with only one space in C#?
24 Answers
24...
Export database schema into SQL file
...wTableName SYSNAME = NULL
,@UseSystemDataTypes BIT = 0
,@script varchar(max) output
AS
BEGIN try
if not exists (select * from sys.types where name = 'TableType')
create type TableType as table (ObjectID int)--drop type TableType
declare @sql nvarchar(max)
DECLARE @Main...
Handling a colon in an element ID in a CSS selector [duplicate]
...h () character indicates three types of character escapes.
First, inside a string, a backslash followed by a newline is ignored (i.e., the string is deemed not to contain either the backslash or the newline).
Second, it cancels the meaning of special CSS characters. Any character (except a hexadeci...