Java String Underscore underscoreAllWhitespace(String str)

Description

Change to underscore all whitespace from the given String: leading, trailing, and inbetween characters.

License

Open Source License

Parameter

Parameter	Description
str	the String to check

Return

the new String

Declaration

public static String underscoreAllWhitespace(String str) 

Method Source Code

//package com.java2s;
/*/*from w ww .  ja v  a2  s. c  om*/
 * gvNIX. Spring Roo based RAD tool for Conselleria d'Infraestructures i
 * Transport - Generalitat Valenciana Copyright (C) 2010, 2011 CIT - Generalitat
 * Valenciana
 * 
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */

public class Main {
    /**
     * Change to underscore <i>all</i> whitespace from the given String:
     * leading, trailing, and inbetween characters.
     * 
     * @param str the String to check
     * @return the new String
     */
    public static String underscoreAllWhitespace(String str) {
        if (str == null || str.length() == 0) {
            return str;
        }
        StringBuilder sb = new StringBuilder(str);
        int index = 0;
        while (sb.length() > index) {
            if (Character.isWhitespace(sb.charAt(index))) {
                sb.replace(index, index + 1, "_");
            } else {
                index++;
            }
        }
        return sb.toString();
    }
}

Related

1. underscore(String camelCaseWord)
2. underscore(String field)
3. underscore(String phase)
4. underscore(String str)
5. underscore(String word)
6. underscoreAndLowercase(String s)
7. underScoreBreakToCaseBreak (final String s)
8. underscoreCase(String s)
9. underScoreCase2CamelCase(String str)