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Feb 8, 2011 at 7:33 comment added user1249 Concatenation with + of strings automatically use StringBuilder instead of StringBuffer for source level 1.5 and higher.
Dec 6, 2010 at 17:54 comment added Gary Yep. Effective Java states that StringBuffer is obsolete and should be replaced by StringBuilder.
Dec 6, 2010 at 12:12 history answered duros CC BY-SA 2.5