This week's book giveaways are in the Java EE and JavaScript forums.
We're giving away four copies each of The Java EE 7 Tutorial Volume 1 or Volume 2(winners choice) and jQuery UI in Action and have the authors on-line!
See this thread and this one for details.
The moose likes Programmer Certification (SCJP/OCPJP) and the fly likes Wrapper Big Moose Saloon
  Search | Java FAQ | Recent Topics | Flagged Topics | Hot Topics | Zero Replies
Register / Login


Win a copy of The Java EE 7 Tutorial Volume 1 or Volume 2 this week in the Java EE forum
or jQuery UI in Action in the JavaScript forum!
JavaRanch » Java Forums » Certification » Programmer Certification (SCJP/OCPJP)
Bookmark "Wrapper" Watch "Wrapper" New topic
Author

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.


"We're kind of on the level of crossword puzzle writers... And no one ever goes to them and gives them an award." ~Joe Strummer
sscce.org
 
I agree. Here's the link: http://aspose.com/file-tools
 
subject: Wrapper