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Справка Scilab >> Java из Scilab > jimport

jimport

Import a Java class

Syntax

jimport(className)
cl = jimport(className, isAClassReturned)

Parameters

className

A string giving the class name

isAClassReturned

A boolean to indicate if a class object must be returned

Description

The class must be in the classpath (to add a package or a directory in the Java classpath, just use javaclasspath).

When jimport("java.lang.String"), a mlist named String is created on the Scilab stack. The created mlist has a type equal to _JClass and can be used to instantiate new objects in using something like str = String.new("A Scilab String");. It is possible to call the static methods (if exist) of the class

jimport java.lang.Math;
x=Math.random();
disp(x);
jremove Math x;

To avoid confusion with already existing Scilab variables, the second argument isAClassReturned can be used

String = "Hello";
foo = jimport("java.lang.String", %f);
obj = foo.new("A string...")
jremove(obj);

A class can be reloaded if it is allowed by the function jallowReloadClass.

Examples

jimport javax.swing.JFrame;
jimport javax.swing.JLabel;

jframe = JFrame.new("Hello World !! Window");
jlabel = JLabel.new("A JLabel containing ""Hello World""");
cp = jframe.getContentPane();
cp.add(jlabel);
jframe.setDefaultCloseOperation(JFrame.DISPOSE_ON_CLOSE);
jframe.pack();
jframe.setVisible(%t);
jremove jlabel cp jframe;

See also

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.
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Copyright (c) 1989-2007 (ENPC)
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Last updated:
Tue Feb 14 15:13:38 CET 2017