Win2000 and XP get a hard disk remaining space (call Windows command with Java)

Package tigers;

Import java.io. *;

PUBLIC CLASS TIGER19 {

Public static void main (string [] args) {try {for (CHAR C = 'a'; c <= 'z'; c ) {string dirname = c ": //"; long free, = getfreediskSpace (DIRNAME) ; If (FreeSpace! = -1) {long Number = Math.Round (FreeSpace / (1024.00 * 1024.00); System.out.Println ("< >>>>" DIRNAME "remaining space is:" number "MB");}}} catch (Exception e) {e.printStackTrace ();}} private static long getFreeDiskSpace (String dirName) throws Exception {String osName = System.getProperty ( "os.name"); if (! ("Windows XP") || OSName.Equalsignorecase ("Windows 2000"))) Return -1; String Command = "CMD EXE / C DIR" DIRNAME; // Operating System Command Process Process = Runtime.getRuntime (). EXEC (Command); // Execute the operating system command. if (process == null) return -1; BufferedReader br = new BufferedReader (new InputStreamReader (process.getInputStream ())); String line = ""; String lastLine = ""; while ((line = br.readLine () )! = null) {// Read in turn, but the purpose of the While loop is just the last line character. System.out.println (line); Lastline = line;} lastline = lastline.replaceAll (",", "); // removes the comma in the middle of the like 2, 146, 623, 488. String [] iTems = lastline.split (""); long freespace = -1; for (int i = (items.length - 1); i> 0; I -) {// start traversing from the last string . Try {FreeSpace = long.parselong (items [i]); break; // If you find the destination data, you jump out of the loop. } Catch (NumberFormatexception NFE) {Continue; // Skip is not a number of characters. }} Return FreeSpace;}}

result:

The volume in the drive C does not have a label. The serial number of the volume is the D44F-E6C7C: / directory

2004-10-26 17:56 0 autoexec.bat2004-10-26 17:56 0 config.sys2004-10-26 18:04