assert keydword usage.

[Zkr Ryz]

O tried to use the new assert keyword but my code doesn't even compile.
I try a simpler code and still dont compile, could you tell me what's wrong here ?

 
~/KeyDev4.0/lab
$ cat X.java
public class X {
    public static void main( String [] args ) {
        assert true ;
        System.out.println("Hello");
    }
}
$ javac X.java
X.java:3: warning: as of release 1.4, assert is a keyword, and may not be used as an identifier
        assert true ;
        ^
X.java:3: not a statement
        assert true ;
        ^
X.java:3: ';' expected
        assert true ;
               ^
2 errors
1 warning
$

[Maulin Vasavada]

yes..
you are correct. i also get the same error. i tried jdk1.4.0_03 and jdk1.4.1_01 both. none of them works.
regards
maulin

[Tina Coleman]

Try
javac -source 1.4 X.java

[Barry Gaunt]

and after it compiles run it with java -ea ( or -enableassertions)
[ December 23, 2002: Message edited by: Barry Gaunt ]

[Dirk Schreckmann]

You might like to take a look at The September Newsletter.

[Zkr Ryz]

Ok , now I got it.
I don't know, this seems kind of odd to me , what is the reason of this -source flag when already have a -target flag ??
Anyway I've never use them before, and now I guess I should start

Thank you all for your answers.
Regards Zkr Ryz.

[Maulin Vasavada]

thanks all.
i will try it when i get back to work
Mary X'Mas.
regards
maulin

[Dirk Schreckmann]

what is the reason of this -source flag when already have a -target flag ??
Take a look at The javac Documentation.