Java Utililty Methods File Name Get

return new File(CODEGENDIR, cls.getSimpleName() + ext).getAbsolutePath();

String name = element.getName();
return name.length() == 0 ? element.getPath() : name;

String ext = null;
String s = f.getName();
int i = s.lastIndexOf(File.pathSeparatorChar);
if (i > 0 && i < s.length() - 1) {
    ext = s.substring(i + 1).toLowerCase();
return ext;

if (f == null)
    return null;
String fn = f.getName();
if (fn.length() <= 0 || fn.equals(".") || fn.equals(".."))
    return fn;
int p = fn.lastIndexOf('.');
if (p < 0)
    return fn;
...

int pos = f.getName().lastIndexOf(".");
String fileName = f.getName().substring(0, pos);
return fileName;

String[] nameArr = file.getName().split("\\.");
StringBuilder name = new StringBuilder();
for (int i = 0; i < nameArr.length - 1; i++) {
    name.append(nameArr[i]);
    if (i != nameArr.length - 2) {
        name.append(".");
return name.toString();

return (file != null) ? file.getName() : "";

if (file == null) {
    return null;
String name = file.getName();
int lastIndexOfDot = name.lastIndexOf('.');
if (lastIndexOfDot != -1) {
    return name.substring(0, lastIndexOfDot);
return name;

return file.getName();

if (file != null) {
    String path = file.getPath();
    int len = path.length();
    int num2 = len;
    while (--num2 >= 0) {
        char ch1 = path.charAt(num2);
        if (ch1 == File.separatorChar)
            return path.substring(num2 + 1, len);
...