Java Utililty Methods File Name Get

String filename;
String[] parts = file.toString().split(Pattern.quote("\\"));
filename = parts[parts.length - 1]; 
String[] segs = filename.split(Pattern.quote("."));
filename = segs[segs.length - 2];
return filename;

assert (file != null);
if (!file.exists()) {
    return null;
String filepath = file.getName();
int i = filepath.lastIndexOf(File.separator);
return (i >= 0) ? filepath.substring(i + 1) : filepath;

return file.getAbsolutePath().replaceAll("\\\\", "\\\\\\\\");

return getFilename(file.getName());

String ext = getExtension(file);
String base = getBase(file);
return setExtension(ext, base);

if (file.isDirectory()) {
    return file.getName();
String name = file.getName();
return name.substring(0, name.indexOf("."));

if (file.isDirectory()) {
    return file.getName();
} else {
    String fileType = getFileType(file);
    if ("unknown".equals(fileType)) {
        return file.getName();
    } else {
        String fileName = file.getName();
...

return file.getName();

String[] piece = _splitPathName(file);
if (withExtension) {
    return piece[FILENAME] + piece[EXTENSION];
return piece[FILENAME];

String fName;
int idx;
fName = path.getName();
if (fName.length() == 0)
    return null;
idx = fName.lastIndexOf('.');
if (idx < 0)
    return fName;
...