本文整理了Java中java.io.File.listRoots()方法的一些代码示例，展示了File.listRoots()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。File.listRoots()方法的具体详情如下：
包路径：java.io.File
类名称：File
方法名：listRoots

File.listRoots介绍

[英]Returns the file system roots. On Android and other Unix systems, there is a single root, /.
[中]返回文件系统根。在Android和其他Unix系统上，只有一个根/。

代码示例

代码示例来源：origin: google/guava

/** Returns a root path for the file system. */
private static File root() {
 return File.listRoots()[0];
}

代码示例来源：origin: k9mail/k-9

/**
 * @param file
 *            Canonical file to match. Never <code>null</code>.
 * @return Whether the specified file matches a filesystem root.
 * @throws IOException
 */
public static boolean isMountPoint(final File file) {
  for (final File root : File.listRoots()) {
    if (root.equals(file)) {
      return true;
    }
  }
  return false;
}

代码示例来源：origin: stackoverflow.com

File[] roots = File.listRoots();
for(int i = 0; i < roots.length ; i++)
  System.out.println("Root["+i+"]:" + roots[i]);

代码示例来源：origin: apache/geode

public List<String> getRoots() {
 File[] roots = File.listRoots();
 return Arrays.stream(roots).map(File::getAbsolutePath).collect(Collectors.toList());
}

代码示例来源：origin: ACRA/acra

@NonNull
  @Override
  public File getFile(@NonNull Context context, @NonNull String fileName) {
    String[] parts = fileName.split(Pattern.quote(File.separator), 2);
    if (parts.length == 1) return new File(fileName);
    final File[] roots = File.listRoots();
    for (File root : roots) {
      if (parts[0].equals(root.getPath().replace(File.separator, ""))) {
        return new File(root, parts[1]);
      }
    }
    return new File(roots[0], fileName);
  }
};

代码示例来源：origin: stackoverflow.com

File[] roots = File.listRoots();

代码示例来源：origin: stackoverflow.com

File[] roots = File.listRoots();

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

File retVal = File.listRoots()[0];
File pureCanonicalFile = retVal;

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

public void run() {
    LOG.fine("refreshAll - started");  //NOI18N
    refreshFor(File.listRoots());
    try {
      getConfigRoot().getFileSystem().refresh(true);
    } catch (FileStateInvalidException ex) {
      Exceptions.printStackTrace(ex);
    } finally {
      LOG.fine("refreshAll - finished");  //NOI18N
      synchronized (REFRESH_RP) {
        refreshTask = null;
      }
    }
  }
});

代码示例来源：origin: spotbugs/spotbugs

public void havePermissions() throws InterruptedException {
  final AtomicBoolean b = new AtomicBoolean(false);
  Thread t = new Thread() {
    @Override
    public void run() {
      b.set(true);
    }
  };
  t.start();
  t.join();
  assertEquals(true, b.get());
  for (File f :  File.listRoots()) {
    f.listFiles();
  }
}

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

/**
 * Registers <code>listener</code> so that it will receive
 * <code>FileEvent</code>s from <code>FileSystem</code>s providing instances
 * of <code>FileObject</code> convertible to <code>java.io.File</code>. 
 * @param fcl
 * @see #toFileObject
 * @since 7.7
 */
public static void addFileChangeListener(FileChangeListener fcl) {
  FileSystem fs = getDiskFileSystem();
  if (fs == null) {fs = getDiskFileSystemFor(File.listRoots());}
  if (fs != null) {
    fs.addFileChangeListener(fcl);
  }
}

代码示例来源：origin: org.netbeans.api/org-openide-filesystems

/**
 * Unregisters <code>listener</code> so that it will no longer receive
 * <code>FileEvent</code>s from <code>FileSystem</code>s providing instances
 * of <code>FileObject</code> convertible to <code>java.io.File</code>      
 * @param fcl
 * @see #toFileObject
 * @since 7.7
 */
public static void removeFileChangeListener(FileChangeListener fcl) {
  FileSystem fs = getDiskFileSystem();
  if (fs == null) {fs = getDiskFileSystemFor(File.listRoots());}
  if (fs != null) {
    fs.removeFileChangeListener(fcl);
  }
}

代码示例来源：origin: mabe02/lanterna

File[] roots = File.listRoots();
for (final File entry : roots) {
  if (entry.canRead()) {

代码示例来源：origin: jphp-group/jphp

@Signature
public static Memory listRoots(Environment env, Memory... args) {
  ArrayMemory r = new ArrayMemory();
  File[] roots = File.listRoots();
  if (roots == null)
    return r.toConstant();
  for(File e : roots) {
    r.add(new FileObject(env, e));
  }
  return r.toConstant();
}

代码示例来源：origin: vert-x3/vertx-web

private void setRoot(String webRoot) {
 Objects.requireNonNull(webRoot);
 if (!allowRootFileSystemAccess) {
  for (File root : File.listRoots()) {
   if (webRoot.startsWith(root.getAbsolutePath())) {
    throw new IllegalArgumentException("root cannot start with '" + root.getAbsolutePath() + "'");
   }
  }
 }
 this.webRoot = webRoot;
}

代码示例来源：origin: stackoverflow.com

File[] paths;
FileSystemView fsv = FileSystemView.getFileSystemView();

// returns pathnames for files and directory
paths = File.listRoots();

// for each pathname in pathname array
for(File path:paths)
{
  // prints file and directory paths
  System.out.println("Drive Name: "+path);
  System.out.println("Description: "+fsv.getSystemTypeDescription(path));
}

代码示例来源：origin: SeanDragon/protools

public static boolean haveDiskD() {
    if (haveDiskD == null) {
      if (isWindows()) {
        for (final File file : File.listRoots()) {
          if (file.isDirectory() && file.getAbsolutePath().toLowerCase().contains("d")) {
            haveDiskD = true;
          }
        }
      }
      haveDiskD = false;
    }
    return haveDiskD;
  }
}

代码示例来源：origin: stackoverflow.com

File[] f = File.listRoots();
for (int i = 0; i < f.length; i++)

代码示例来源：origin: stackoverflow.com

public static void main(String args[]){
 List <File>files = Arrays.asList(File.listRoots());
 for (File f : files) {
  String s1 = FileSystemView.getFileSystemView().getSystemDisplayName (f);

代码示例来源：origin: glowroot/glowroot

File[] roots = File.listRoots();
if (roots != null) {
  for (File root : roots) {