Java Collection Convert toCommaDelimitedString(Collection c)

Description

Returns the elements of c separated by commas.

License

Open Source License

Parameter

Parameter	Description
c	a Collection of objects to convert to Strings and delimit by commas

Return

a String containing c's elements, delimited by commas

Declaration

public static String toCommaDelimitedString(Collection c) 

Method Source Code

//package com.java2s;
/*//  ww  w .j av  a2s  .  c  om
 * The Unified Mapping Platform (JUMP) is an extensible, interactive GUI
 * for visualizing and manipulating spatial features with geometry and attributes.
 *
 * Copyright (C) 2003 Vivid Solutions
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation; either version 2
 * of the License, or (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
 *
 * For more information, contact:
 *
 * Vivid Solutions
 * Suite #1A
 * 2328 Government Street
 * Victoria BC  V8T 5G5
 * Canada
 *
 * (250)385-6040
 * www.vividsolutions.com
 */

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

public class Main {
    /**
     * Returns the elements of c separated by commas. If c is empty, an empty
     * String will be returned.
     * @param c a Collection of objects to convert to Strings and delimit by commas
     * @return a String containing c's elements, delimited by commas
     */
    public static String toCommaDelimitedString(Collection c) {
        return toDelimitedString(c, ", ");
    }

    public static String toDelimitedString(Collection c, String delimiter) {
        if (c.isEmpty()) {
            return "";
        }

        StringBuffer result = new StringBuffer();

        for (Iterator i = c.iterator(); i.hasNext();) {
            Object o = i.next();
            result.append(delimiter + ((o == null) ? "" : o.toString()));
        }

        return result.substring(delimiter.length());
    }
}

Related

1. to2DStringArray(Collection coll)
2. toAlphaCollection(Collection collection)
3. toArray(Collection items, Object array[], boolean convert_to_primitive)
4. toCollectionString(Collection c, char sep)
5. toCollectionString(Collection collection_p)
6. toCommaDelimitedStringInQuotes(Collection c)
7. toCommaSep(Collection strings)
8. toCommaSeparatedString(final Collection items)
9. toCommaSeparatedValues(Collection list)