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new Check: NumericLiteralNeedUnderscoreCheck #187

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romani opened this issue May 15, 2014 · 1 comment
Closed

new Check: NumericLiteralNeedUnderscoreCheck #187

romani opened this issue May 15, 2014 · 1 comment
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@romani
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@romani romani commented May 15, 2014

http://docs.oracle.com/javase/7/docs/technotes/guides/language/underscores-literals.html

If literal is more that N symbols, demand "_" on each M symbols in literal. It is up to a user there to put them:

long creditCardNumber = 1234_5678_9012_3456L;
long socialSecurityNumber1  = 999_99_9999_L; 

We need that option for two format separately: Hex, Bytes

Types: Int, Long (L), Float (F)
Looks like no need for special options for types - they are not affect length literal.

More examples:
http://javarevisited.blogspot.sg/2014/03/why-use-underscore-in-numbers-from-java-SE-7-numeric-literals.html
http://javarevisited.blogspot.com/2014/04/10-jdk-7-features-to-revisit-before-you.html "5) Underscore in Numeric literals"

@daniilyar daniilyar added moderate and removed enhancement labels Aug 15, 2014
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@romani romani changed the title new Check: Numeric Literal Need Underscore Check new Check: NumericLiteralNeedUnderscoreCheck Oct 23, 2015
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@romani romani commented Jan 16, 2016

merged

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