samples/interface_impl.js

/*
 * Copyright (c) 2014, Oracle and/or its affiliates. All rights reserved.
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 * modification, are permitted provided that the following conditions
 * are met:
 *
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 *     notice, this list of conditions and the following disclaimer.
 *
 *   - Redistributions in binary form must reproduce the above copyright
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 *
 *   - Neither the name of Oracle nor the names of its
 *     contributors may be used to endorse or promote products derived
 *     from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
 * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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 */

// nashorn supports Java interface implementation
// by script using anonymous class-like syntax

var Runnable = Java.type("java.lang.Runnable");
var Thread = Java.type("java.lang.Thread");
// use anonymous class-like new syntax
var r = new Runnable() {
    run: function() {
        print("I am a runnable " + Thread.currentThread());
    }
}

r.run();

var t = new Thread(r);
t.start();
t.join();