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Difference between . and : in Lua
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edited Oct 4 '13 at 16:03
Yu Hao
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Java: Getting a substring from a string starting after a particular character
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String example = "/abc/def/ghfj.doc";
System.out.println(example.substring(example.lastIndexOf(...
Hash String via SHA-256 in Java
...ring text = "Text to hash, cryptographically.";
// Change this to UTF-16 if needed
md.update(text.getBytes(StandardCharsets.UTF_8));
byte[] digest = md.digest();
String hex = String.format("%064x", new BigInteger(1, digest));
System.out.println(hex);
}
}
In the snippet abov...
Remove not alphanumeric characters from string
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edited Apr 1 '16 at 9:40
answered Feb 20 '12 at 16:23
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How would I skip optional arguments in a function call?
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19 Answers
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How can I display an RTSP video stream in a web page?
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15 Answers
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How to append the output to a file?
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215
Use >> to append:
command >> file
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What is the `data-target` attribute in Bootstrap 3?
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data-target is used by bootstrap to make your life easier. You (mostly) do not need to write a...
What's wrong with nullable columns in composite primary keys?
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Primary keys are for uniquely identifying rows. This is done by comparing all parts of a key to ...