Java Array Join join(String separator, String... array)

Description

join

License

Apache License

Declaration

public static String join(String separator, String... array) 

Method Source Code

//package com.java2s;
/*/*from w ww.ja va2s  .c om*/
Copyright [2013-2014] eBay Software Foundation
    
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.Arrays;
import java.util.List;

public class Main {
    public static String join(String separator, String... array) {
        return join(separator, Arrays.asList(array));
    }

    public static String join(String separator, List<String> list) {
        if (separator == null) {
            throw new RuntimeException("Separator is null!");
        }
        StringBuilder sb = new StringBuilder();
        if (list.size() > 0) {
            sb.append(list.get(0));
            for (int i = 1; i < list.size(); i++) {
                sb.append(separator);
                sb.append(list.get(i));
            }
        }
        return sb.toString();
    }
}

Related

1. join(String s[], String glue)
2. join(String sep, final String[] strings)
3. join(String sep, Object[] os)
4. join(String sep, String[] a)
5. join(String sep, String[] arr)
6. join(String separator, String[] strings)
7. join(String separator, String[] strings)
8. join(String[] a, String delimiter, Integer startIndex)
9. join(String[] a, String[] b)