通过java得到windows的磁盘空间大小

package com.zuidaima.util;

import java.io.File;

public class FreeDiskSpace {

	public static void main(String[] args) {
		File file = new File("c:");
		long totalSpace = file.getTotalSpace();
		long freeSpace = file.getFreeSpace();
		long usedSpace = totalSpace - freeSpace;

		System.out.println("总空间大小 : " + totalSpace / 1024 / 1024 / 1024 + "G");
		System.out.println("剩余空间大小 : " + freeSpace / 1024 / 1024 / 1024 + "G");
		System.out.println("已用空间大小 : " + usedSpace / 1024 / 1024 / 1024 + "G");
	}

}