Scilab Website | Contribute with GitLab | Mailing list archives | ATOMS toolboxes
Scilab Online Help
2025.0.0 - Русский


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

ВерсияОписание
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.
Report an issue
<< jenableTrace Java из Scilab jgetclassname >>
Copyright (c) 2022-2024 (Dassault Systèmes)
Copyright (c) 2017-2022 (ESI Group)
Copyright (c) 2011-2017 (Scilab Enterprises)
Copyright (c) 1989-2012 (INRIA)
Copyright (c) 1989-2007 (ENPC)
with contributors 		Last updated:
Thu Oct 24 11:18:38 CEST 2024