StringUtil.java Source code

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/* 
 * The Apache Software License, Version 1.1
 *
 * Copyright (c) 2002 The Apache Software Foundation.  All rights
 * reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 *
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 *
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in
 *    the documentation and/or other materials provided with the
 *    distribution.
 *
 * 3. The end-user documentation included with the redistribution, if
 *    any, must include the following acknowlegement:
 *       "This product includes software developed by the
 *        Apache Software Foundation (http://www.apache.org/)."
 *    Alternately, this acknowlegement may appear in the software itself,
 *    if and wherever such third-party acknowlegements normally appear.
 *
 * 4. The names "The Jakarta Project", "Commons", and "Apache Software
 *    Foundation" must not be used to endorse or promote products derived
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 *    permission, please contact apache@apache.org.
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 * 5. Products derived from this software may not be called "Apache"
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 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESSED OR IMPLIED
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 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
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 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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 * 
 *
 * This software consists of voluntary contributions made by many
 * individuals on behalf of the Apache Software Foundation.  For more
 * information on the Apache Software Foundation, please see
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 */

/**
 * max: Removed methods that dependent on anything else than common.StringUtils.
 * 
 * <p>Common <code>String</code> manipulation routines.</p>
 *
 * <p>Originally from 
 * <a href="http://jakarta.apache.org/turbine/">Turbine</a> and the
 * GenerationJavaCore library.</p>
 *
 * @author <a href="mailto:jon@latchkey.com">Jon S. Stevens</a>
 * @author <a href="mailto:dlr@finemaltcoding.com">Daniel Rall</a>
 * @author <a href="mailto:gcoladonato@yahoo.com">Greg Coladonato</a>
 * @author <a href="mailto:bayard@generationjava.com">Henri Yandell</a>
 * @author <a href="mailto:ed@apache.org">Ed Korthof</a>
 * @author <a href="mailto:rand_mcneely@yahoo.com>Rand McNeely</a>
 * @author <a href="mailto:scolebourne@joda.org>Stephen Colebourne</a>
 * @author <a href="mailto:fredrik@westermarck.com>Fredrik Westermarck</a>
 * @version $Id$
 */
public class StringUtil {
    /**
     * Deletes all whitespace from a String.
     * Whitespace is defined by Character.isWhitespace
     *
     * @param str  String target to delete whitespace from
     * @return the text without whitespace
     * @throws NullPointerException
     */
    public static String deleteWhitespace(String str) {
        StringBuffer buffer = new StringBuffer();
        int sz = str.length();
        for (int i = 0; i < sz; i++) {
            if (!Character.isWhitespace(str.charAt(i))) {
                buffer.append(str.charAt(i));
            }
        }
        return buffer.toString();
    }
}