variable declaration in java

[saravana sankar]

hai everyone,

In java I was surprised by the following coding.

class c1
{
public static void main(String a[])
{
int �;
� = 10;
System.out.println("The value is : " +�);
}
}
I thought that this will give an error but it is getting excecuted normally.
Any variable should start with an alphabet
or underscore or currrency.
But I am surprised to see that
the value between Alt-128 to Alt-158 also comes under this
category.
so pls. give explanation.

[Thomas Paul]

This has nothing to do with Java News so I will move this to... hmmmm....
Java In Genral (Intermediate).

[Dave Landers]

An identifier (variable) should start with a letter - including underscore (_) or dollar sign ($) - followed by letters or digits.
A "letter" uses the unicode definition, which includes lots of characters from many languages.
See javadoc for Character.isJavaIdentifierStart()
or the JLS section about identifiers
http://java.sun.com/docs/books/jls/second_edition/html/lexical.doc.html#40625