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wrapper and == question

Mark Uppeteer
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Joined: Mar 02, 2004
Posts: 159


I don't understand why

prints true.


I thought when 'new' is involved you are actually bypassing the cache of the classes. Which seems to be so in the second example, but this doesn't seem to be the case in the first example (where there is a new involved))

Could someone explain this ?


I know where my towel is. (SCJP 5, OCPJWCD)
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Keith Lynn
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Joined: Feb 07, 2005
Posts: 2367
The reason is that the return type of Boolean.parseBoolean is a primitive boolean.

When == is applied to a boolean and a Boolean, then the Boolean is unboxed and == is boolean equality.
Mark Uppeteer
Ranch Hand

Joined: Mar 02, 2004
Posts: 159

oops,that was actually something I should have been able to see myself..
I guess I was blinded by the 'new' and got confused.

Thanks a lot!

I agree. Here's the link:
subject: wrapper and == question