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Wrapper

Thirumalai Muthu
Ranch Hand

Joined: Oct 07, 2007
Posts: 75
Integer i1=100;
Integer i2=new Integer(100);

What is the difference between these two Statements?
Can anyone Please Explain.Thanks


SCJP 5
marc weber
Sheriff

Joined: Aug 31, 2004
Posts: 11343

The second statement explicitly creates a new wrapper instance. But the first statement uses boxing, which either implicitly creates a new wrapper instance, or (because the value is within the range of a byte) references an existing instance. See JLS 5.1.7 for details.


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subject: Wrapper