Java File Name Extract extractFileName(String fn)

Description

extract File Name

License

Apache License

Declaration

public static String extractFileName(String fn) 

Method Source Code

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

public class Main {
    public static String extractFileName(String fn) {
        int j = lastIndexOfPathSeparator(fn);
        if (j == -1) {
            return fn;
        }// www  .  j a  va 2  s. com
        return (fn.substring(j + 1));
    }

    public static String extractFileName(String fn, boolean includeExt) {
        int j = lastIndexOfPathSeparator(fn);
        String s;
        if (j == -1) {
            s = fn;
        } else {
            s = fn.substring(j + 1);
        }
        if (!includeExt) {
            return excludeFileExt(s);
        }
        return s;
    }

    public static int lastIndexOfPathSeparator(String str) {
        if (str == null)
            return -1;

        int length = str.length();
        for (int i = length - 1; i >= 0; i--) {
            char c = str.charAt(i);
            if (c == '/' || c == '\\') {
                return i;
            }
        }

        return -1;
    }

    public static final String excludeFileExt(String fn) {
        if (fn == null)
            return fn;
        int i = lastIndexOf(fn, '.');
        if (i != -1) {
            fn = fn.substring(0, i);
        }
        return fn;
    }

    public static int lastIndexOf(String str, char ch) {
        if (str == null)
            return -1;

        int length = str.length();
        for (int i = length - 1; i >= 0; i--) {
            if (str.charAt(i) == ch) {
                return i;
            }
        }

        return -1;
    }
}

Related

1. extractFileName(StackTraceElement aFrame)
2. extractFileName(String file)
3. extractFileName(String fileName)
4. extractFileName(String filePathName)
5. extractFileName(String filePathName)
6. extractFileName(String fullPath)
7. extractFileName(String name)
8. extractFileName(String path)
9. extractFileName(String path)