What is the default encoding of the JVM

Question

Is UTF-8 the default encoding in Java  If not  how can I know which encoding is used by default

User · Answer

There are three  default  encodings    file encoding System getProperty  file encoding   java nio Charset Charset defaultCharset   And the encoding of the InputStreamReader InputStreamReader getEncoding     You can read more about it on this page

User · Answer

It s going to be locale-dependent  Different locale  different default encoding

User · Answer

You can use this to print out the JVM defaults   import java nio charset Charset  import java io InputStreamReader  import java io FileInputStream   public class PrintCharSets           public static void main String   args  throws Exception                   System out println  file encoding     System getProperty  file encoding                     System out println  Charset defaultCharset     Charset defaultCharset                     System out println  InputStreamReader getEncoding     new InputStreamReader new FileInputStream    PrintCharSets java    getEncoding                   Compile and Run   javac PrintCharSets java  amp  amp  java PrintCharSets

User · Answer

To get default java settings just use    java -XshowSettings

User · Answer

Note that you can change the default encoding of the JVM using the confusingly-named property file encoding    If your application is particularly sensitive to encodings  perhaps through usage of APIs implying default encodings   then you should explicitly set this on JVM startup to a consistent  known  value

User · Answer

I am sure that this is JVM implemenation specific  but I was able to  influence  my JVM s default file encoding by executing   export LC ALL en US UTF-8    running java version 1 7 0 80 on Ubuntu 12 04   Also  if you type  locale  from your unix console  you should see more info there   All the credit goes to http   www philvarner com 2009 10 24 unicode-in-java-default-charset-part-4

User · Answer

The default character set of the JVM is that of the system it s running on   There s no specific value for this and you shouldn t generally depend on the default encoding being any particular value   It can be accessed at runtime via Charset defaultCharset    if that s any use to you  though really you should make a point of always specifying encoding explicitly when you can do so

[java] What is the default encoding of the JVM?

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