Example usage for java.lang String indexOf

Introduction

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

Prototype

public int indexOf(String str)

Source Link

Document

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

Usage

From source file:Main.java

public static boolean isURI(String str) {

    if (str.indexOf(':') == -1)
        return false;
    str = str.toLowerCase(Locale.ENGLISH).trim();

    if (!str.startsWith("http://") && !str.startsWith("https://") && !str.startsWith("ftp://"))
        return false;

    try {//from   w  ww  .jav a 2  s  . co  m

        URI uri = new URI(str);
        String proto = uri.getScheme();

        if (proto == null)
            return false;

        if (proto.equals("http") || proto.equals("https") || proto.equals("ftp")) {

            if (uri.getHost() == null)
                return false;

            String path = uri.getPath();
            if (path != null) {

                int len = path.length();
                for (int i = 0; i < len; i++) {

                    if ("?<>:*|\"".indexOf(path.charAt(i)) > -1)
                        return false;
                }
            }
        }

        return true;
    } catch (Exception ex) {

        return false;
    }
}

From source file:Main.java

private static Node actualFindNode(Node node, String name) {

    String nodeName = node.getNodeName();
    nodeName = nodeName.substring((nodeName.indexOf(":") != -1 ? nodeName.indexOf(":") + 1 : 0));

    if (nodeName.equals(name)) {
        return node;
    }// w w  w  .ja va2 s .com
    if (node.hasChildNodes()) {
        NodeList list = node.getChildNodes();
        int size = list.getLength();

        for (int i = 0; i < size; i++) {
            Node found = actualFindNode(list.item(i), name);
            if (found != null)
                return found;
        }
    }
    return null;
}