Stuff

import static java.lang.System.*;import java.text.NumberFormat;public class Autobox {	public static void main(String[] args) throws java.text.ParseException {		NumberFormat nf = NumberFormat.getInstance();		int i=0;		int limit = 50000000;		if(args.length != 0) {			limit = nf.parse(args[0]).intValue();		}		double start = nanoTime();		while(i++<limit) {			Integer I = i;		}		gc();		double timeTaken = nanoTime()-start;		out.println("Number of ints auto-boxed: " + nf.format(limit));		out.println("total millis: "+ (timeTaken/1000000) );		out.println("nanos per autobox: "+ ( timeTaken/limit ) );	}}