Java Collection Join join(String delimiter, Collection a)

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Description

join

License

Apache License

Declaration 

public static String join(String delimiter, Collection<?> a)

Method Source Code


//package com.java2s;
//License from project: Apache License 

import java.util.*;

public class Main {
    public static String join(String delimiter, Collection<?> a) {
        if (a.isEmpty()) {
            return "";
        }/*from   w  w  w.  jav a  2s . c o  m*/
        StringBuilder buffer = new StringBuilder();
        for (Object o : a) {
            buffer.append(delimiter);
            buffer.append(o);
        }
        return buffer.substring(delimiter.length());
    }
}

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