Java Iterable Join join(Iterable source, String separator)

Description

Join an Iterable of String into one string with a separator

License

Open Source License

Parameter

Parameter	Description
source	a parameter
separator	a parameter

Declaration

public static String join(Iterable<String> source, String separator) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.Iterator;

public class Main {
    /**/*  w w  w  . j a va2s .  c o m*/
     * Join an Iterable of String into one string with a separator
     * @param source
     * @param separator
     */
    public static String join(Iterable<String> source, String separator) {

        Iterator<String> iterator = null;
        if (source == null) {
            return "";
        }

        iterator = source.iterator();
        if (!(iterator.hasNext())) {
            return "";
        }

        StringBuilder builder = new StringBuilder(iterator.next());
        while (iterator.hasNext()) {
            builder.append(separator).append(iterator.next());
        }
        return builder.toString();
    }
}

Related

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6. join(Iterable strings)
7. join(Iterable strings, String delimiter)
8. join(Iterable strings, String separator)
9. join(Iterable array, String joiner)