Freya.no » conversion http://wp.freya.no Knowledge is power Mon, 06 Feb 2012 19:56:41 +0000 en hourly 1 Java conversions and 7 Golden rules of widening, boxing & varargs http://wp.freya.no/java/java-conversions-and-golden-rules-of-widening-boxing-varargs/ http://wp.freya.no/java/java-conversions-and-golden-rules-of-widening-boxing-varargs/#comments Tue, 16 Feb 2010 19:31:43 +0000 Tatyana http://wp.freya.no/?p=510 Here is a very useful java conversion table that I’ve created while preparing for the Sun Certified Java Programmer exam.

primitives conversion

Java primitive conversions table

And here is a complete overview of the Golden rules of widening, boxing & varargs:

1. Primitive Widening > Boxing > Varargs.
2. Widening and Boxing (WB) not allowed.
3. Boxing and Widening (BW) allowed.
4. While overloading Widening + vararg and boxing + vararg are mutually exclusive of each other.
5. Widening between wrapper classes not allowed
6. Widening+varArgs & Boxing+varargs are individually allowed (but not allowed in overloaded version of method)
7. Boxing+Widening is preferred over Boxing+Varargs.

More explanation here.

Share

No related posts.

]]> http://wp.freya.no/java/java-conversions-and-golden-rules-of-widening-boxing-varargs/feed/ 1