Java List Join joinList(List list, String separator)

Description

join List

License

Apache License

Declaration

public static String joinList(List<String> list, String separator) 

Method Source Code

//package com.java2s;
/* Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License./*from www  . j av  a  2 s.com*/
 */

import java.util.List;

public class Main {
    public static String joinList(List<String> list, String separator) {
        if (list == null) {
            return null;
        }

        int size = list.size();
        if (size == 0) {
            return "";
        } else if (size == 1) {
            return list.get(0);
        } else {
            StringBuilder builder = new StringBuilder(size * 8);
            builder.append(list.get(0));
            for (Object element : list.subList(1, size)) {
                builder.append(separator);
                builder.append(element);
            }
            return builder.toString();
        }
    }
}

Related

1. joinList(final List list, final String sep)
2. joinList(List list, String separator)
3. joinList(List list, String separator)
4. joinList(List items)
5. joinList(List list, String glue)
6. joinList(List parts, String sep)
7. joinList(String separater, List list)
8. joinLists( final List> lists)
9. joinLists(List A, List B, double epsilon)