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Wrapper class ??  RSS feed

 
Chen SanHau
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In Java, primitive types have associated wrapper classes,
like primitive type int VS Integer class etc,
But can I use objects of wrapper class to do operations of mathematics??
Or I should convert wrapper class to primitive type ???


Another question is about n! .When I write codes for practice,the result
of 5000! is too big. Should I use class BigDecimal or BigInteger in java.math package??

I need your help.
Thankx your help in advanced.
[ March 10, 2004: Message edited by: Ha LoHa ]
 
Dirk Schreckmann
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But can I use objects of wrapper class to do operations of mathematics??
No.
Or I should convert wrapper class to primitive type ???
Yes.
Note that others have implemented their own "wrapper" classes which do provide methods for various mathematical operations.
When I write codes for practice,the result
of 5000! is too big. Should I use class BigDecimal or BigInteger in java.math package??

Yes, you could do that.
 
Chen SanHau
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Note that others have implemented their own "wrapper" classes which do provide methods for various mathematical operations.

What others?
Would you tell me some examples ??
 
It is sorta covered in the JavaRanch Style Guide.
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