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How to remove duplicate white spaces in string using Java?

...atches a space, tab, new line, carriage return, form feed or vertical tab, and + says "one or more of those". Thus the above code will collapse all "whitespace substrings" longer than one character, with a single space character. Source: Java: Removing duplicate white spaces in strings ...
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Split string in Lua?

...imple split of a string, but there doesn't seem to be a function for this, and the manual way I tested didn't seem to work. How would I do it? ...
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SQL update trigger only when column is modified

... You have two way for your question : 1- Use Update Command in your Trigger. ALTER TRIGGER [dbo].[tr_SCHEDULE_Modified] ON [dbo].[SCHEDULE] AFTER UPDATE AS BEGIN SET NOCOUNT ON; IF UPDATE (QtyToRepair) BEGIN UPDATE SCHEDULE SET modified = GETDA...
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How to assign a Git SHA1's to a file without Git?

As I understand it when Git assigns a SHA1 hash to a file this SHA1 is unique to the file based on its contents. 12 Answer...
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How to read a large file - line by line?

... for line in f: # Do something with 'line' The with statement handles opening and closing the file, including if an exception is raised in the inner block. The for line in f treats the file object f as an iterable, which automatically uses buffered I/O and memory management so you don't ...
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How do I concatenate multiple C++ strings on one line?

...ilverMöls The OP declares s on a different line in the equivalent C# code and in his non-compiling C++ code. His desired C++ is s += "Hello world, " + "nice to see you, " + "or not."; which can be written s.append("Hello world, ").append("nice to see you, ").append("or not."); ...
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Tools for analyzing performance of a Haskell program

... how to find out why this solution is so slow. Are there any commands that tell me where most of the computation-time is spend so I know which part of my haskell-program is slow? Precisely! GHC provides many excellent tools, including: runtime statistics time profiling heap profiling t...
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.trim() in JavaScript not working in IE

...behavior expected from a trim function. If you want to remove both leading and trailing spaces you need to use replace(/^\s+|\s+$/g, ''). – Massimiliano Fliri Apr 29 '10 at 15:13 1...
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How to validate an email address in JavaScript

... for "RFC822" or "RFC2822" to get a proper regex. – Randal Schwartz Sep 8 '10 at 2:34 45 This doe...
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Concatenating null strings in Java [duplicate]

... s = null; s = s + "hello"; System.out.println(s); // prints "nullhello" and compiles it into bytecode as if you had instead written this: String s = null; s = new StringBuilder(String.valueOf(s)).append("hello").toString(); System.out.println(s); // prints "nullhello" (You can do so yourself b...