Java Collection Join join(final Collection strs, final String delimiter)

Description

join

License

Apache License

Declaration

public static String join(final Collection<String> strs, final String delimiter) 

Method Source Code

//package com.java2s;
/*//from   ww w  .  ja v  a2  s . c  o  m
 * 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.
 */

import java.util.Collection;
import java.util.Iterator;

public class Main {
    public static String join(final Collection<String> strs, final String delimiter) {
        if (strs == null || strs.isEmpty()) {
            return "";
        }
        Iterator<String> it = strs.iterator();
        if (strs.size() == 1) {
            return it.next();
        }
        StringBuilder sb = new StringBuilder(it.next());
        while (it.hasNext()) {
            sb.append(delimiter).append(it.next());
        }
        return sb.toString();
    }
}

Related

1. join(final Collection aStrings, final String aSeparator)
2. join(final Collection chunks, final String delimiter)
3. join(final Collection collection, final String separator)
4. join(final Collection list, final String separator)
5. join(final Collection seq, final String delimiter)
6. join(final Collection toJoin)
7. join(final Collection values)
8. join(final Collection values, final char separator)
9. join(final Collection collection)