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Syntax is "boolean flag" but if i write "Boolean flag" so why does it works

 
Greenhorn
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syntax for boolean is
boolean flag

but then why does
Boolean flag works and dont show any error
 
author
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"boolean" is a type (primative). And "Boolean" is a class type. Furthermore, with autoboxing, those two types are somewhat interchangeable -- although (IMHO), you really shouldn't use them that way.

Henry
 
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which version of JDK you are using? if you are using higher than 1.4 (5 or 6), implicit unboxing is done
 
Greenhorn
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Dear Jigar

Boolean is a wrapper Class of primitive boolean, as mentioned by Henry, consideration on using a primitive or a wrapper class depends much on which use you will give to you variable.

For example collection classes like List, Set only access classes, they do not access primitives, then if you require that you information be stored on a List object then you should use a wrapper class.

Autoboxing, as mentioned by Sujith, is also a interesting feature to understand when using primitives and wrapper classes. Read the following article here

Regards.
 
Jigar Patel
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Thanks All
got it
 
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