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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...
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What is the copy-and-swap idiom?

... std::swap(this_string, that) doesn't provide a no-throw guarantee. It provides strong exception safety, but not a no-throw guarantee. – wilhelmtell Dec 22 '10 at 14:59 ...
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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...
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How do I turn a String into a InputStreamReader in java?

How can I transform a String value into an InputStreamReader ? 6 Answers 6 ...
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what is Segmentation fault (core dumped)? [duplicate]

...f), you should use the %f format specifier. The %s format specifier is for strings ('\0'-terminated character arrays). share | improve this answer | follow | ...
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How does grep run so fast?

...lly amazed by the functionality of GREP in shell, earlier I used to use substring method in java but now I use GREP for it and it executes in a matter of seconds, it is blazingly faster than java code that I used to write.(according to my experience I might be wrong though) ...
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What is the difference between trie and radix trie data structures?

...ll be root["smiles"[5]]. This brings us to smiles_item, and the end of our string. Our search has terminated, and the item has been retrieved, with just three node accesses instead of eight. What is a PATRICIA trie? A PATRICIA trie is a variant of radix tries for which there should only ever be ...
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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...
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Is there a way to escape a CDATA end token in xml?

...DIT2: The same section also reads: Within a CDATA section, only the CDEnd string is recognized as markup, so that left angle brackets and ampersands may occur in their literal form; they need not (and cannot) be escaped using "<" and "&". CDATA sections cannot nest. In other words, ...
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Javascript heredoc

... Try ES6 String Template, you can do something like var hereDoc = ` This is a Multiple Line String `.trim() hereDoc == 'This\nis\na\nMultiple\nLine\nString' => true You can use this great feature today by with 6to5 or TypeScr...