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jacl-manual-1.4.1-5.mga5.noarch.rpm

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The java::isnull Command
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The java::isnull Command
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Usage:
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<DD><B>java::isnull</B> <I>javaObj</I>

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The <B>java::isnull</B> command is used to tell if a Java
reference has the null value. The <I>javaObj</I> argument specifies an
object handle. If the object has the null value, <B>java::isnull</B>
will return 1. If the object is a Java object then <B>java::isnull</B>
will return 0. If the object is not a valid Java object but rather
a standard Tcl string, <B>java::isnull</B> will return an error
stating that the argument was not a Java object handle.

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<PRE>
<A HREF="../license.html">Copyright</A> &#169; 1997-1998 Sun Microsystems, Inc.
</PRE>


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