java convert long to double

/**
 * @author lautturi.com 
 * Java example:converting long to double in java
 */

import java.util.*;

public class Lautturi {
	public static void main(String[] args) {
		long l = 1234567;
		double d = Double.valueOf(String.format(Locale.ENGLISH, "%1$.3f",  l/1.000));
		System.out.println(l);
		System.out.println(d);
	}
}

output:

1234567
1234567.0