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Using parameters in batch files at Windows command line

... As others have already said, parameters passed through the command line can be accessed in batch files with the notation %1 to %9. There are also two other tokens that you can use: %0 is the executable (batch file) name as specified in the command line. %* is all parameters specified i...
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Should switch statements always contain a default clause?

...pe! based on the language, // there should probably be some error-handling // here, maybe an exception } 2. To handle 'default' actions, where the cases are for special behavior. You see this a LOT in menu-driven programs and bash shell scripts. You might also see this when a vari...
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How to match, but not capture, part of a regex?

...regular expression matches only apple or banana if it’s preceded by 123- and followed by -456, or it matches the empty string if it’s preceded by 123- and followed by 456. |Lookaround | Name | What it Does | -------------------------------------------------...
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How does UTF-8 “variable-width encoding” work?

The unicode standard has enough code-points in it that you need 4 bytes to store them all. That's what the UTF-32 encoding does. Yet the UTF-8 encoding somehow squeezes these into much smaller spaces by using something called "variable-width encoding". ...
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Hidden features of C

I know there is a standard behind all C compiler implementations, so there should be no hidden features. Despite that, I am sure all C developers have hidden/secret tricks they use all the time. ...
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How to check if a String is numeric in Java

... With Apache Commons Lang 3.5 and above: NumberUtils.isCreatable or StringUtils.isNumeric. With Apache Commons Lang 3.4 and below: NumberUtils.isNumber or StringUtils.isNumeric. You can also use StringUtils.isNumericSpace which returns true for empty st...
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What is the difference between client-side and server-side programming?

... Your code is split into two entirely separate parts, the server side and the client side. | ----------> HTTP request | +--------------+ | +--------------+ | | | | | | browser | ...
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What is a fat JAR? [duplicate]

I've heard people say that they create a fat JAR and deploy it. What do they actually mean ? 6 Answers ...
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What is the difference between SQL, PL-SQL and T-SQL?

What is the difference between SQL, PL-SQL and T-SQL? 6 Answers 6 ...
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Can a recursive function be inline?

...s , found that the above code would lead to "infinite compilation" if not handled by compiler correctly. 9 Answers ...