Tuesday, 22 November 2016

Java Tutorial : Java IO (Java File - How to get free disk space)


Click here to watch in Youtube : 
https://www.youtube.com/watch?v=6YqOyu9bCAw&list=UUhwKlOVR041tngjerWxVccw

FileDemo.java
import java.io.File;

public class FileDemo
{

    public static void main(String[] args)
    {
        File file = new File("c:");
        /*
         * Returns the size of the partition named by this
         * abstract pathname.
         */
        long totalSpace = file.getTotalSpace();
        /*
         * Returns the number of bytes available to this
         * virtual machine on the partition named by this
         * abstract pathname.
         */
        long usableSpace = file.getUsableSpace();
        /*
         * Returns the number of unallocated bytes in the
         * partition named by this abstract path name.
         */
        long freeSpace = file.getFreeSpace();

        System.out.println(" === bytes ===");
        System.out.println("Total size : " + totalSpace + " bytes");
        System.out.println("Space free : " + usableSpace + " bytes");
        System.out.println("Space free : " + freeSpace + " bytes");

        System.out.println(" === gigabyte ===");
        System.out.println("Total size : " + totalSpace / 1024 / 1024 / 1024 + " GB");
        System.out.println("Space free : " + usableSpace / 1024 / 1024 / 1024 + " GB");
        System.out.println("Space free : " + freeSpace / 1024 / 1024 /1024 + " GB");
    }

}
Output
 === bytes ===
Total size : 129926488064 bytes
Space free : 53480681472 bytes
Space free : 53480681472 bytes
 === gigabyte ===
Total size : 121 GB
Space free : 49 GB
Space free : 49 GB
Click the below link to download the code:
https://sites.google.com/site/ramj2eev1/home/javabasics/JavaIODemo_File_drive_size_App.zip?attredirects=0&d=1

Github Link:
https://github.com/ramram43210/Java/tree/master/BasicJava/JavaIODemo_File_drive_size_App

Bitbucket Link:
https://bitbucket.org/ramram43210/java/src/a3d05269db9922e504bb1f9de8d07031990c9910/BasicJava/JavaIODemo_File_drive_size_App/?at=master

See also:

  • All JavaEE Viedos Playlist
  • All JavaEE Viedos
  • All JAVA EE Links
  • Servlets Tutorial
  • All Design Patterns Links
  • JDBC Tutorial
  • Java Collection Framework Tutorial
  • JAVA Tutorial
  • Kids Tutorial
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