Getting file statistics (ie. disk space) can now be easily done in Java 1.6 using new methods that we recently released.   Let’s review the code below:

Using the following methods, we will get the Total Disk Space and also find our how much space is Free.   We can then calculate space usage by subtracting the two.

• getTotalSpace(): Returns the total capacity of the partition.
• getFreeSpace():  Returns the free space available in the partition.

DiskSpaceUtil.java

package com.omega.tutorial;

import java.io.File;

public class DiskSpaceUtil {

  public static void main(String[] args) {

    File systemDrive = new File("C:");
    long totalDiskSpace = systemDrive.getTotalSpace();
    long freeDiskSpace = systemDrive.getFreeSpace();
    long usedDiskSpace = totalDiskSpace - freeDiskSpace;

    System.out.println("-----[ Disk space in Bytes ]-------");
    System.out.format("Total C: Disk Size : %,d bytesn", totalDiskSpace);
    System.out.format("Total Used Space   : %,d bytesn", usedDiskSpace);
    System.out.format("Total Free Space   : %,d bytesnn", freeDiskSpace);

    System.out.println("-----[ Disk space in MegaBytes ]-------");
    System.out.format("Total C: Disk Size : %,d MBn", totalDiskSpace/(1024*1024));
    System.out.format("Total Used Space   : %,d MBn", usedDiskSpace/(1024*1024));
    System.out.format("Total Free Space   : %,d MBnn", freeDiskSpace/(1024*1024));

    System.out.println("-----[ Disk space in GigaBytes ]-------");
    System.out.format("Total C: Disk Size : %,d GBn", totalDiskSpace/(1024*1024*1024));
    System.out.format("Total Used Space   : %,d GBn", usedDiskSpace/(1024*1024*1024));
    System.out.format("Total Free Space   : %,d GBnn", freeDiskSpace/(1024*1024*1024));
  }
}

Output:

Other Related Posts

• How to Get Disk Space in Java
  Getting file statistics (ie. disk space) can now be easily done in Java 1.6 using new methods that we recently released.
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• Delete a directory in Java
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