Java String Empty tokenizeToStringArray(String str, String delimiters, boolean trimTokens, boolean ignoreEmptyTokens)

Description

Tokenize the given String into a String array via a StringTokenizer.

License

Apache License

Parameter

Parameter	Description
str	the String to tokenize
delimiters	the delimiter characters, assembled as String (each of those characters is individually considered as delimiter)
trimTokens	trim the tokens via String's <code>trim</code>
ignoreEmptyTokens	omit empty tokens from the result array (only applies to tokens that are empty after trimming; StringTokenizer will not consider subsequent delimiters as token in the first place).

Return

an array of the tokens

Declaration

public static String[] tokenizeToStringArray(String str, String delimiters, boolean trimTokens,
        boolean ignoreEmptyTokens) 

Method Source Code

//package com.java2s;
/*//from w  w  w. jav  a 2 s. c o  m
 * Copyright 2002-2005 the original author or authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

import java.util.*;

public class Main {
    /**
     * Tokenize the given String into a String array via a StringTokenizer.
     * Trims tokens and omits empty tokens.
     * <p>
     * The given delimiters string is supposed to consist of any number of
     * delimiter characters. Each of those characters can be used to separate
     * tokens. A delimiter is always a single character; for multi-character
     * delimiters, consider using <code>delimitedListToStringArray</code>
     * 
     * @param str
     *            the String to tokenize
     * @param delimiters
     *            the delimiter characters, assembled as String (each of those
     *            characters is individually considered as delimiter).
     * @return an array of the tokens
     * @see StringTokenizer
     * @see String#trim
     * @see #delimitedListToStringArray
     */
    public static String[] tokenizeToStringArray(String str, String delimiters) {
        return tokenizeToStringArray(str, delimiters, true, true);
    }

    /**
     * Tokenize the given String into a String array via a StringTokenizer.
     * <p>
     * The given delimiters string is supposed to consist of any number of
     * delimiter characters. Each of those characters can be used to separate
     * tokens. A delimiter is always a single character; for multi-character
     * delimiters, consider using <code>delimitedListToStringArray</code>
     * 
     * @param str
     *            the String to tokenize
     * @param delimiters
     *            the delimiter characters, assembled as String (each of those
     *            characters is individually considered as delimiter)
     * @param trimTokens
     *            trim the tokens via String's <code>trim</code>
     * @param ignoreEmptyTokens
     *            omit empty tokens from the result array (only applies to
     *            tokens that are empty after trimming; StringTokenizer will not
     *            consider subsequent delimiters as token in the first place).
     * @return an array of the tokens
     * @see StringTokenizer
     * @see String#trim
     * @see #delimitedListToStringArray
     */
    public static String[] tokenizeToStringArray(String str, String delimiters, boolean trimTokens,
            boolean ignoreEmptyTokens) {

        StringTokenizer st = new StringTokenizer(str, delimiters);
        List tokens = new ArrayList();
        while (st.hasMoreTokens()) {
            String token = st.nextToken();
            if (trimTokens) {
                token = token.trim();
            }
            if (!ignoreEmptyTokens || token.length() > 0) {
                tokens.add(token);
            }
        }
        return (String[]) tokens.toArray(new String[tokens.size()]);
    }
}

Related

1. isEmptyturnlane(String turns)
2. isNotEmpty(String str)
3. isNullOrEmpty(String message, String string)
4. isNullOrEmpty(String value)
5. splitAt(String s, String delimiter, boolean includeEmpty)
6. tokenizeToStringArray(String str, String delimiters, boolean trimTokens, boolean ignoreEmptyTokens)
7. trimToEmpty(String value)