Implementing Runnable
•js> obj = { run: function() { print('hi'); } }
•[object Object]
•js> obj.run()
•hi
•js> r = new java.lang.Runnable(obj);
•[object Object]
•js> t = new java.lang.Thread(r)
•Thread[Thread-0,5,main]
•js> t.start()
•hi