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Using Regular Expressions to Extract a Value in Java
... Pattern p = Pattern.compile("\\d+");
Matcher m = p.matcher("hello1234goodboy789very2345");
while(m.find()) {
System.out.println(m.group());
}
}
}
Output:
1234
789
2345
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Converting .NET DateTime to JSON [duplicate]
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you can skip the second replace statement since parseInt('1234abcd') returns 1234 in js
– amd
Feb 11 '13 at 13:03
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How to format strings in Java
...sing it. For example the following code MessageFormat.format("Number {0}", 1234)); depending on default locale can produce Number 1,234 instead of Number 1234.
– pavel_kazlou
Dec 4 '12 at 10:25
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What is the correct JSON content type?
... the query parameters passed in the URL.
Example:
{ "Name": "Foo", "Id": 1234, "Rank": 7 }
Content-Type: application/json
JSON-P:
JSON with padding.
Response is JSON data, with a function call wrapped around it.
Example:
functionCall({"Name": "Foo", "Id": 1234, "Rank": 7});
Content-Type:...
Count the number of occurrences of a string in a VARCHAR field?
... CHAR_LENGTH(description) - CHAR_LENGTH( REPLACE ( description, 'value', '1234') )
AS `count`
FROM <table>
The difference is that I replace the "value" string with a 1-char shorter string ("1234" in this case). This way you don't need to divide and round to get an integer valu...
How to test valid UUID/GUID?
...]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}$/.test('01234567-9ABC-DEF0-1234-56789ABCDEF0');
or with brackets
/^\{?[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{4}-[0-9a-fA-F]{12}\}?$/
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How do I format a number in Java?
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From this thread, there are different ways to do this:
double r = 5.1234;
System.out.println(r); // r is 5.1234
int decimalPlaces = 2;
BigDecimal bd = new BigDecimal(r);
// setScale is immutable
bd = bd.setScale(decimalPlaces, BigDecimal.ROUND_HALF_UP);
r = bd.doubleValue();
System.out.pri...
Best practices for using Markers in SLF4J/Logback
...Simplified example:
...[Sandy][abcd] clicked on "change profile"
...[Joe][1234] clicked on "weather reports"
...[Joe][1234] clicked on "Europe"
...[Sandy][abcd] clicked on "logout"
...[Joe][1234] clicked on "logout"
...[Sandy][efgh] logged in
Here, you're using MDC in two places: for username and...
Form inside a table
...form> inside of <table> in the standards?
– 1234ru
Aug 11 '17 at 8:44
4
@Qentin fair eno...
How many random elements before MD5 produces collisions?
...arate folders based on their user ID in S3.
For example: "mybucket/users/1234/somefile.jpg". It's not exactly the same as a directory in a file system, but the S3 API has some features that let it work almost the same. I can ask it to list all files that begin with "users/1234/" and it will show m...