Example usage for java.lang String lastIndexOf

Introduction

In this page you can find the example usage for java.lang String lastIndexOf.

Prototype

public int lastIndexOf(String str)

Source Link

Document

Returns the index within this string of the last occurrence of the specified substring.

Usage

From source file:Main.java

public static String getParentUrl(String url) {

    int index = url.lastIndexOf("/");
    if (index > 0)
        return url.substring(0, index);

    return "";
}

From source file:Main.java

/**
 * Returns the extension of a given filename (excluding the .). If there is
 * no extension defined, this function returns "".
 * //w  w  w.  j  a v  a2 s.co m
 * @param path
 * @return
 */
public static String getExtension(final String path) {
    final int dotPos = path.lastIndexOf(".");
    if (dotPos > 0) {
        return path.substring(dotPos + 1);
    }
    return "";
}

From source file:Main.java

public static String getExtension(String uri) {
    return uri.contains(".") ? uri.substring(uri.lastIndexOf(".") + 1) : "";
}

From source file:Main.java

private static String getVideoContentType(String url) {

    int dot = url.lastIndexOf(".");
    String fileType = url.substring(dot + 1);

    if (fileType.equals("webm")) {
        return "video/webm";
    } else {/*from ww w . j  a  va  2s  .c  o m*/
        return "video/mp4";
    }
}

From source file:Main.java

/**
 * Parse the name of a file to obtain a correct string.
 * The name is in the format "01 filename.ext" and this method returns "filename"
 *
 * @param name String//from   w ww  .j  av a2s.  c om
 * @return String
 */
public static String parseFileName(String name) {

    int extension = name.lastIndexOf(".");

    if (extension > -1)
        name = name.substring(0, extension);

    name = name.substring(3).replace("_", "/");

    return name;
}

From source file:Main.java

public static String GetUpPath(String path) {
    String retPath = path.substring(0, path.lastIndexOf(File.separator));
    return retPath;

}

From source file:AudioFilter.java

public static String getExtension(File f) {

    String ext = null;//w  ww . j  a va 2s .co m
    String s = f.getName();
    int i = s.lastIndexOf('.');
    if (i > 0 && i < s.length() - 1) {
        ext = s.substring(i + 1).toLowerCase();
    }
    return ext;

}

From source file:Main.java

/**
 * Remove file information from a filename returning only its path component
 * //from w  ww  . jav a2 s  . co m
 * @param filename
 *            The filename
 * @return The path information
        
 */
public static String pathComponent(String filename) {
    int i = filename.lastIndexOf(File.separator);
    return (i > -1) ? filename.substring(0, i) : filename;
}

From source file:Main.java

/**
 * Returns the path for a file.<br>
 * <code>path("/home/user/test.jpg") == "/home/user"</code><br>
 * Uses the correct pathSeparator depending on the operating system. On
 * windows c:/test/ is not c:\test\/*from   www. j av  a2  s  .  c o m*/
 * 
 * @param fileName
 *            the name of the file using correct path separators.
 * @return the path of the file.
 */
public static String path(final String fileName) {
    final int sep = fileName.lastIndexOf(File.separatorChar);
    return fileName.substring(0, sep);
}

From source file:Main.java

/** Returns the common ancestor path of s1 and s2 * */
public static int commonPath(String s1, String s2) {
    int s1c = s1.lastIndexOf(':');
    int s2c = s2.lastIndexOf(':');
    int i = 0;/*from   w w w . j  av a2s .co m*/
    while (true) {
        if (i > s1c || i > s2c)
            break;
        if (s1.charAt(i) != s2.charAt(i))
            break;
        ++i;
    }
    return i;
}