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C default arguments

... present depending on the required arguments, and printf(3) reads a format string that specifies how many arguments there will be. Both use varargs quite safely and effectively, and though you can certainly screw them up, printf() especially seems to be quite popular. – Chris L...
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How do I break a string across more than one line of code in JavaScript?

... In your example, you can break the string into two pieces: alert ( "Please Select file" + " to delete"); Or, when it's a string, as in your case, you can use a backslash as @Gumbo suggested: alert ( "Please Select file\ to delete"); Note that this back...
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What is the simplest way to convert a Java string from all caps (words separated by underscores) to

...t all. What's the simplest/most elegant way that I can convert, in Java, a string from the format "THIS_IS_AN_EXAMPLE_STRING" to the format " ThisIsAnExampleString "? I figure there must be at least one way to do it using String.replaceAll() and a regex. ...
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Unable to find valid certification path to requested target - error even after cert imported

... javax.net.ssl.*; public class InstallCert { public static void main(String[] args) throws Exception { String host; int port; char[] passphrase; if ((args.length == 1) || (args.length == 2)) { String[] c = args[0].split(":"); host = c[0]; port = (c.lengt...
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How do malloc() and free() work?

... @Juergen But when free() read extra byte which contain information how much memory allocated from malloc, it get 4. Then how crash happened or how free() touch administrative data ? – Undefined Behaviour Aug 5 '16 at...
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New line in Sql Query

...server-difference-between-line-feed-n-and-carriage-return-r-t-sql-new-line-char/ DECLARE @NewLineChar AS CHAR(2) = CHAR(13) + CHAR(10) PRINT ('SELECT FirstLine AS FL ' + @NewLineChar + 'SELECT SecondLine AS SL') share ...
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How to send emails from my Android application?

...N_SEND); i.setType("message/rfc822"); i.putExtra(Intent.EXTRA_EMAIL , new String[]{"recipient@example.com"}); i.putExtra(Intent.EXTRA_SUBJECT, "subject of email"); i.putExtra(Intent.EXTRA_TEXT , "body of email"); try { startActivity(Intent.createChooser(i, "Send mail...")); } catch (android.c...
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How to remove all line breaks from a string

...match all variants is /\r?\n|\r/ If you want to match all newlines in a string, use a global match, /\r?\n|\r/g respectively. Then proceed with the replace method as suggested in several other answers. (Probably you do not want to remove the newlines, but replace them with other whitespace, f...
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What are the basic rules and idioms for operator overloading?

...oo { public: // Overloaded call operator int operator()(const std::string& y) { // ... } }; Usage: foo f; int a = f("hello"); Throughout the C++ standard library, function objects are always copied. Your own function objects should therefore be cheap to copy. If a functi...
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“PKIX path building failed” and “unable to find valid certification path to requested target”

... certificates. */ public class InstallCert { public static void main(String[] args) throws Exception { String host; int port; char[] passphrase; if ((args.length == 1) || (args.length == 2)) { String[] c = args[0].split(":"); host = c[0];...