Java String Join join(String separator, String... strings)

Description

todo: move to common module

License

Open Source License

Parameter

Parameter	Description
separator	a parameter
strings	a parameter

Declaration

public static String join(String separator, String... strings) 

Method Source Code

//package com.java2s;
/**//  w w w .ja v a2  s .  c  o  m
 * Copyright (C) 2009 eXo Platform SAS.
 *
 * This is free software; you can redistribute it and/or modify it
 * under the terms of the GNU Lesser General Public License as
 * published by the Free Software Foundation; either version 2.1 of
 * the License, or (at your option) any later version.
 *
 * This software 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
 * Lesser General Public License for more details.
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this software; if not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA, or see the FSF site: http://www.fsf.org.
 */

import java.util.List;

public class Main {
    /**
     * todo: move to common module
     *
     * @param separator
     * @param strings
     * @return
     */
    public static String join(String separator, String... strings) {
        if (strings == null) {
            return null;
        }
        StringBuilder sb = new StringBuilder();
        for (int i = 0; i < strings.length; i++) {
            Object o = strings[i];
            if (i > 0) {
                sb.append(separator);
            }
            sb.append(o);
        }
        return sb.toString();
    }

    public static String join(String separator, List<String> strings) {
        if (strings == null) {
            return null;
        }
        String[] array = strings.toArray(new String[strings.size()]);
        return join(separator, array);
    }
}

Related

1. join(String separator, CharSequence... elements)
2. join(String separator, Collection strings)
3. join(String separator, List objects)
4. join(String separator, Object... objects)
5. join(String separator, String... parts)
6. join(String separator, String... strings)
7. join(String splitter, String... strs)
8. join(String str[], String splitter)
9. join(String... paths)