Java Collection Join join(Collection strings, String delimiter)

Description

join

License

Open Source License

Declaration

public static String join(Collection<String> strings, String delimiter) 

Method Source Code

//package com.java2s;

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

public class Main {
    public static String join(Collection<String> strings, String delimiter) {
        if (strings == null) {
            throw new IllegalArgumentException("strings is null");
        }//from   www.j ava  2s . com

        if (delimiter == null) {
            throw new IllegalArgumentException("delimiter is null");
        }

        StringBuilder builder = new StringBuilder();

        for (Iterator<String> iterator = strings.iterator(); iterator.hasNext();) {
            builder.append(iterator.next());
            builder.append(delimiter);
        }

        if (builder.length() > 0) {
            return builder.substring(0, builder.length() - delimiter.length());
        } else {
            return "";
        }
    }
}

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6. join(Collection strings, String delimiter)
7. join(Collection strings, String delimiter)
8. join(Collection strings, String sep)
9. join(Collection strings, String sep)