Java File Name Get getFileName(File f)

Description

Return the file name without path or extension.

License

Open Source License

Parameter

Parameter	Description
f	The file

Return

The file name with no path or extension

Declaration

public static String getFileName(File f) 

Method Source Code

//package com.java2s;
/*******************************************************************************
 * Copyright (c) 2012 Firestar Software, Inc.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors://from  w ww.j  a  v  a  2s . co  m
 *     Firestar Software, Inc. - initial API and implementation
 *
 * Author:
 *     Gabriel Oancea
 *
 *******************************************************************************/

import java.io.*;

public class Main {
    /**
     * Return the file name without path or extension. If the file is one of the special '.', '..' will return it as
     * such. If the file name begins with '.' return it as such. Otherwise will remove the last '.' and anything
     * following after it. For example:
     * 
     * <pre>
     * <p><code>File Name       Returned value</code>
     * <p><code>null            null </code>
     * <p><code>"."             "." </code>
     * <p><code>".."            ".." </code>
     * <p><code>".hidden"       ".hidden" </code>
     * <p><code>"some"          "some" </code>
     * <p><code>"some.txt"      "some" </code>
     * <p><code>"some.file.txt" "some.file" </code>
     * </pre>
     * 
     * No checks are made if the file exists, or is a file/directory, etc.
     * 
     * @param f The file
     * @return The file name with no path or extension
     */
    public static String getFileName(File f) {
        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;
        if (p == 0)
            return "";
        return fn.substring(0, p);
    }
}

Related

1. getFileName(Class cls, String ext)
2. getFileName(File element)
3. getFileName(File f)
4. getFileName(File f)
5. getFileName(File file)
6. getFileName(File file)
7. getFileName(File file)