Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
//License from project: Apache License 

import java.io.File;

import android.text.TextUtils;

public class Main {
    private final static String FILE_EXTENSION_SEPARATOR = ".";

    /**
     * Get file name from the path (without extension)
     * 
     * @param filePath
     *            The path of the file
     * @return String File name without extension
     * @see <pre>
     *      getFileNameWithoutExtension(null)               =   null
     *      getFileNameWithoutExtension("")                 =   ""
     *      getFileNameWithoutExtension("   ")              =   "   "
     *      getFileNameWithoutExtension("abc")              =   "abc"
     *      getFileNameWithoutExtension("a.mp3")            =   "a"
     *      getFileNameWithoutExtension("a.b.rmvb")         =   "a.b"
     *      getFileNameWithoutExtension("/home/admin")      =   "admin"
     *      getFileNameWithoutExtension("/home/admin/a.txt/b.mp3")  =   "b"
     * </pre>
     */
    public static String getFileNameWithoutExtension(String filePath) {
        if (TextUtils.isEmpty(filePath)) {
            return filePath;
        }

        int extenPosi = filePath.lastIndexOf(FILE_EXTENSION_SEPARATOR);
        int filePosi = filePath.lastIndexOf(File.separator);
        if (filePosi == -1) {
            return (extenPosi == -1 ? filePath : filePath.substring(0, extenPosi));
        } else {
            if (extenPosi == -1) {
                return filePath.substring(filePosi + 1);
            } else {
                return (filePosi < extenPosi ? filePath.substring(filePosi + 1, extenPosi)
                        : filePath.substring(filePosi + 1));
            }
        }
    }
}