Java List Join join(List entries, String separator)

Description

join

License

Open Source License

Declaration

public static <T> String join(List<T> entries, String separator) 

Method Source Code

//package com.java2s;
/*//from   www . j av  a 2s  . c o m
    
   Copyright (C) 2016  S?bastien Le Callonnec
    
   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, write to the Free Software Foundation,
   Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301  USA
    
*/

import java.util.Iterator;
import java.util.List;

public class Main {
    public static <T> String join(List<T> entries, String separator) {
        if (entries == null) {
            return null;
        }

        StringBuilder output = new StringBuilder();
        Iterator<T> iterEntries = entries.iterator();
        while (iterEntries.hasNext()) {
            T entry = iterEntries.next();
            if (entry != null) {
                output.append(entry.toString().trim());
                if (iterEntries.hasNext() && separator != null) {
                    output.append(separator);
                }
            }
        }

        return output.toString();
    }
}

Related

1. join(List tokens, String separator)
2. join(List values)
3. join(List values, String delimiter)
4. join(List values, String string)
5. join(List words, String separator)
6. join(List list, String delim)
7. join(List list, String delim)
8. join(List list, String delimiter)
9. join(List list, String joiner)