Java获得磁盘盘符，并且分析电脑各个盘符中的大小

package cn.edu.hactcm;

import java.io.File;

public class SpaceChecker {

  public static void main(String[] args) {

    File[] roots = File.listRoots();

    for (int i = 0; i < roots.length; i++) {

      System.out.println(roots[i]);

      System.out.println("Free space = " + roots[i].getFreeSpace());

      System.out.println("Usable space = " + roots[i].getUsableSpace());

      System.out.println("Total space = " + roots[i].getTotalSpace());

      System.out.println();

    }

  }

}