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How can I pad a String in Java?

...*chars Display '*' for characters of password: String password = "secret123"; String padded = String.format("%"+password.length()+"s", "").replace(' ', '*'); output has the same length as the password string: secret123 ********* ...
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How to get the data-id attribute?

... To get the contents of the attribute data-id (like in <a data-id="123">link</a>) you have to use $(this).attr("data-id") // will return the string "123" or .data() (if you use newer jQuery >= 1.4.3) $(this).data("id") // will return the number 123 and the part after data- ...
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Host 'xxx.xx.xxx.xxx' is not allowed to connect to this MySQL server

...ccess the MySQL Database on your actual server (say your remote address is 123.123.123.123 at port 3306 as user 'root' and I want to change permissions on database 'dataentry'. Remember to change the IP Address, Port, and database name to your settings) mysql -u root -p Enter password: <enter p...
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How do I format a string using a dictionary in python-3.x?

...yntax, available since Python 3.6: >>> geopoint = {'latitude':41.123,'longitude':71.091} >>> print(f'{geopoint["latitude"]} {geopoint["longitude"]}') 41.123 71.091 Note the outer single quotes and inner double quotes (you could also do it the other way around). ...
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How to get the client IP address in PHP [duplicate]

...answered Oct 8 '14 at 16:20 josh123a123josh123a123 1,66511 gold badge1010 silver badges2020 bronze badges ...
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jquery data selector

..., and then select using that attribute: var elm = $('a').attr('data-test',123); //assign 123 using attr() elm = $("a[data-test=123]"); //select elm using attribute and now for that elm, both attr() and data() will yield 123: console.log(elm.attr('data-test')); //123 console.log(elm.data('test'))...
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Comma separator for numbers in R?

...rn a vector of characters. I'd only use that for printing. > prettyNum(12345.678,big.mark=",",scientific=FALSE) [1] "12,345.68" > format(12345.678,big.mark=",",scientific=FALSE) [1] "12,345.68" EDIT: As Michael Chirico says in the comment: Be aware that these have the side effect of padd...
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How to secure MongoDB with username and password

... server with --auth. However, when I try to login (./mongo -u theadmin -p 12345 ) I fail. I can't login. – murvinlai Feb 3 '11 at 0:10 ...
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PHP_SELF vs PATH_INFO vs SCRIPT_NAME vs REQUEST_URI

... => /test [QUERY_STRING] => Query String http://domain.com/test?123 [PHP_SELF] => /index.php/test [PATH_INFO] => /test [REQUEST_URI] => /test?123 [QUERY_STRING] => 123 Example 2 RewriteCond %{REQUEST_FILENAME} !-f RewriteCond %{REQUEST_FILENAME} !-d RewriteCond %{R...
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How to validate phone numbers using regex

...ou should discard the (0) entirely). Then, you end up with values like: 12345678901 12345678901x1234 345678901x1234 12344678901 12345678901 12345678901 12345678901 +4112345678 +441234567890 Then when you display, reformat to your hearts content. e.g. 1 (234) 567-8901 1 (234) 567-89...