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PO
primarykey
Id
9699138
data
AcceptedAnswerId
0
AnswerCount
0
ClosedDate
CommentCount
0
CommunityOwnedDate
CreationDate
2012-03-14T09:30:00.580
FavoriteCount
0
LastActivityDate
2018-02-15T11:31:25.503
LastEditDate
2018-02-15T11:31:25.503
LastEditorUserId
139985
OwnerUserId
139985
ParentId
9699071
PostTypeId
2
Score
9
ViewCount
0
LastEditorDisplayName
text
Body
The in-memory representation used in the <code>String</code> type's char array is UTF-16. Modified UTF-8 is used in other contexts; e.g. in ".class" files, and the object serialization format. You can confirm this by looking at the source code of the <code>java.lang.String</code> class. UPDATE With Java 6 update 21 and later, there is a non-standard option to enable compressed strings. With Java 9 and later, the behavior has been changed to use the compact representation for Strings by default. The <code>java</code> command <a href="https://docs.oracle.com/javase/9/tools/java.htm" rel="nofollow noreferrer">documentation</a> now says this: <blockquote> -XX:-CompactStrings Disables the Compact Strings feature. By default, this option is enabled. When this option is enabled, Java Strings containing only single-byte characters are internally represented and stored as single-byte-per-character Strings using ISO-8859-1 / Latin-1 encoding. This reduces, by 50%, the amount of space required for Strings containing only single-byte characters. For Java Strings containing at least one multibyte character: these are represented and stored as 2 bytes per character using UTF-16 encoding. Disabling the Compact Strings feature forces the use of UTF-16 encoding as the internal representation for all Java Strings. </blockquote> (Note that is not UTF-8 encoding.) See also: <ul> <li><a href="https://docs.oracle.com/javase/9/whatsnew/toc.htm" rel="nofollow noreferrer">Java Platform, Standard Edition What’s New in Oracle JDK 9</a></li> <li><a href="http://openjdk.java.net/jeps/254" rel="nofollow noreferrer">JEP 254: Compact Strings</a></li> </ul>
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Title
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1. This table or related slice is empty.
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1. POWhat is the Java's internal represention for String? Modified UTF-8? UTF-16?
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PostTypePostTypeId
1. PTAnswer
UserLastEditorUserId
1. USStephen C
UserOwnerUserId
1. USStephen C
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