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Code Block
titlenew anonymous class-like syntax
// This syntax is primarily used to support anonymous class-like syntax for
// Java interface implementation as shown below.

var r = new java.lang.Runnable() {
    run: function() { print("run"); }
}

 

Anonymous function statements

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Code Block
titlemulti-line string literals
var str = <<EOF

This is a string that contains multiple lines
hello
world
That's all!

EOF

print(str)

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String interpolation (-scripting mode only)
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 Code Block
titleJavaImporter
// JavaImporter constructor accepts one or more Java Package objects
var imports = new JavaImporter(java.util, java.io);

// a JavaImporter can be used as a "with" expression object
with(imports) {
    // classes from java.util and java.io packages can 
    // can be accessed by unqualified names

    var map = new HashMap(); // refers to java.util.HashMap
    map.put("js", "javascript");
    map.put("java", "java");
    map.put("cpp", "c++");
    print(map);

    var f = new File("."); // refers to java.io.File
    print(f.getAbsolutePath());
}
 Code Block
titleJavaImporter in 'with' statement example
// read text content from the given URL

function readText(url) {
    // Using JavaImporter to resolve classes
    // from specified java packages within the
    // 'with' statement below

    with (new JavaImporter(java.io, java.net)) {
        // more or less regular java code except for static types
        var is = new URL(url).openStream();
        try {
            var reader = new BufferedReader(
                new InputStreamReader(is));
            var buf = '', line = null;
            while ((line = reader.readLine()) != null) {
                buf += line;
            }
        } finally {
            reader.close();
        }
        return buf;
    }
}

print(readText("http://google.com?q=jdk8"))
Java object
"Java" global property is a script object that defines useful functions for script-to-Java interface.
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