Java get free disk space

/**
 * @author lautturi.com 
 * Java example: get current free disk space in java
 */

import java.util.*;
import java.io.File;

public class Lautturi {

	public static void main(String[] args) {

		File diskPartition = new File("C:");
		long freePartitionSpace = diskPartition.getFreeSpace();

		System.out.println("Free Disk Space: " + freePartitionSpace + "B");
		System.out.println("Free Disk Space: " + (freePartitionSpace / 1024) + "KB");
		System.out.println("Free Disk Space: " + (freePartitionSpace / 1024 / 1024) + "MB");
		System.out.println("Free Disk Space: " + (freePartitionSpace / 1024 / 1024 / 1024) + "GB");

	}
}

output:

Free Disk Space: 6293143552B
Free Disk Space: 6145648KB
Free Disk Space: 6001MB
Free Disk Space: 5GB