docs/source/javaarray.js

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// create Java String array of 5 elements
var StringArray = Java.type("java.lang.String[]");
var a = new StringArray(5);

// Accessing elements and length access is by usual Java syntax
a[0] = "scripting is great!";
print(a.length);
print(a[0]);

// convert a script array to Java array
var anArray = [1, "13", false];
var javaIntArray = Java.to(anArray, "int[]");
print(javaIntArray[0]);// prints 1
print(javaIntArray[1]); // prints 13, as string "13" was converted to number 13 as per ECMAScript ToNumber conversion
print(javaIntArray[2]);// prints 0, as boolean false was converted to number 0 as per ECMAScript ToNumber conversion

// convert a Java array to a JavaScript array
var File = Java.type("java.io.File");
var listCurDir = new File(".").listFiles();
var jsList = Java.from(listCurDir);
print(jsList);