[5077] in java-interest
Re: Strings.substring() and the == operator
daemon@ATHENA.MIT.EDU (Pat Niemeyer)
Sun Jan 28 07:38:07 1996
Date: Sun, 28 Jan 1996 05:23:01 -0600 (CST)
From: Pat Niemeyer <pat@icon-stl.net>
To: Walter Szewelanczyk <Walter@stumpy.adco.com>
cc: java-interest@java.sun.com
In-Reply-To: <199601280726.XAA08717@java0.javasoft.com>
On Sun, 28 Jan 1996, Walter Szewelanczyk wrote:
> I have a problem using the == operator on Strings. If I asign a
"==" is a test for identity not for equality.
You should always use equals() instead.
Because strings are immutable, they can be shared and you will find that
Java sometimes gives you the same reference for identical strings.
This happens, for example, when you embed two identical literal string
references in the same class. But when you take a substring, or some other
behavior the string may be copied.
Pat
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