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Scilab Help >> Java from Scilab > jexists

jexists

Test if a Scilab Java Object is valid on the Java side

Syntax

bool = jexists(obj)

Parameters

obj

A mlist typed _JObj or _JClass

bool

A boolean

Description

Returns true if the corresponding Java object is always valid. An object can be invalidated with jremove.

Examples

jimport java.lang.Double;
d = Double.new("1.23456");
jexists(d)
jremove d;
jexists(d) // Will fail

See Also

  • jremove — Remove a Java Object on the Java side

History

VersionDescription
5.5.0 Function introduced. Based on the 'JIMS' module. The main difference in the behavior compared to the JIMS module is that jautoUnwrap is enabled by default.
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Copyright (c) 2011-2015 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors 		Last updated:
Wed Jun 15 08:27:54 CEST 2016