Java List Concatenate concat(List items, String separator)

Description

concat

License

Open Source License

Declaration

static String concat(List<String> items, String separator) 

Method Source Code

//package com.java2s;
/*//from  w w  w.ja  v  a2s.co m
 * Copyright (C) 2014 Jan Pokorsky
 *
 * 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/>.
 */

import java.util.List;

public class Main {
    static String concat(List<String> items, String separator) {
        StringBuilder sb = new StringBuilder();
        for (String item : items) {
            sb.append(item).append(separator);
        }
        if (sb.length() > 0) {
            return sb.substring(0, sb.length() - separator.length());
        } else {
            return null;
        }
    }
}

Related

1. concat(List l1, List l2)
2. concat(List list1, List list2)
3. concat(List list, String delim)
4. concat(List lista, List listb)
5. concat(List items, String quotation, String separation)
6. concat(List strings, String separator)
7. concat(List tokens)
8. concat(List words)
9. concat(List... lists)