Java Collection Join join(Collection strings, String delimiter)

Description

Joins the given collection of string into a single string, each separated by the given delimiter.

License

Open Source License

Declaration

public static String join(Collection<String> strings, String delimiter) 

Method Source Code

//package com.java2s;
/**/* www  .j a  v a 2s. co m*/
 * Copyright (C) 2011  William Bowers <http://williambowers.net/>
 * 
 * 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.Arrays;
import java.util.Collection;
import java.util.Iterator;

public class Main {
    public static String join(String[] strings, String delimiter) {
        return join(Arrays.asList(strings), delimiter);
    }

    /**
     * Joins the given collection of string into a single string, each
     * separated by the given delimiter.
     */
    public static String join(Collection<String> strings, String delimiter) {
        if (strings.isEmpty()) {
            return "";
        }

        StringBuffer buffer = new StringBuffer();
        join(strings, delimiter, buffer);
        return buffer.toString();
    }

    public static void join(String[] strings, String delimiter, StringBuffer buffer) {
        join(Arrays.asList(strings), delimiter, buffer);
    }

    public static void join(Collection<String> strings, String delimiter, StringBuffer buffer) {
        Iterator<String> it = strings.iterator();

        if (strings.isEmpty()) {
            return;
        }

        buffer.append(it.next());

        while (it.hasNext()) {
            buffer.append(delimiter);
            buffer.append(it.next());
        }
    }
}

Related

1. join(Collection s, String delimiter)
2. join(Collection s, String delimiter)
3. join(Collection src, String delim)
4. join(Collection strings)
5. join(Collection strings, String delimiter)
6. join(Collection strings, String delimiter)
7. join(Collection strings, String delimiter)
8. join(Collection strings, String delimiter)
9. join(Collection strings, String sep)