Java Utililty Methods File Name Get

return getFileNamePart(file.getName());

if (file == null) {
    return null;
return getFilenameParts(file.getName());

Set<String> fileNames = new HashSet<>();
ByteArrayInputStream inputStream = new ByteArrayInputStream(zipFile);
ZipInputStream zis = new ZipInputStream(inputStream);
ZipEntry entry;
while ((entry = zis.getNextEntry()) != null) {
    fileNames.add(entry.getName());
return fileNames;
...

File[] files = path.listFiles(new FileFilter() {
    public boolean accept(File pathname) {
        return pathname.isDirectory() || pathname.toString().toLowerCase().endsWith(".java")
                || pathname.toString().toLowerCase().endsWith(".r")
                || pathname.toString().toLowerCase().endsWith("build.xml");
});
if (files == null)
...

ZipFile theZipFile;
try {
    theZipFile = new ZipFile(zipFile);
} catch (ZipException e) {
    throw new Error(e);
} catch (IOException e) {
    throw new Error(e);
return getFileNames(theZipFile, pattern);

ArrayList<String> result = new ArrayList<String>();
for (File afile : files) {
    result.add(afile.getAbsolutePath());
return result.toArray(new String[0]);

String[] fileNames = new String[files.length];
for (int i = 0; i < fileNames.length; i++) {
    fileNames[i] = files[i].getName();
return fileNames;

List<String> names = new ArrayList<String>();
File dir = new File(path);
String[] files = dir.list();
for (String file : files) {
    if (file.matches(regex)) {
        names.add(file);
return names;

return getFileNames(pDataDir, pFilter, false);

File[] files;
if (filter == null) {
    files = (new File(dir)).listFiles();
} else {
    files = (new File(dir)).listFiles(filter);
String[] filenames = new String[files.length];
for (int i = 0; i < files.length; i++) {
...