posted 14 years ago

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

I need your help.

Thankx your help in advanced.

[ March 10, 2004: Message edited by: Ha LoHa ]

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 ]

posted 14 years ago

No.

Yes.

Note that others have implemented their own "wrapper" classes which do provide methods for various mathematical operations.

Yes, you could do that.

*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??

of 5000! is too big. Should I use class BigDecimal or BigInteger in java.math package??

Yes, you could do that.

Chen SanHau

Greenhorn

Posts: 27

posted 14 years ago

What others?

Would you tell me some examples ??

*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. |