Java Collection to String collectionToString(Collection col, String sep)

Description

collection To String

License

Open Source License

Parameter

Parameter	Description
T	a parameter
col	may not contain null values
sep	the separating string

Return

a comma separated list of #toString values

Declaration

public static <T> String collectionToString(Collection<T> col, String sep) 

Method Source Code

//package com.java2s;
/*----------------    FILE HEADER  ------------------------------------------
 This file is part of deegree.//from   w  w w.  j  a  v a2 s  .c  o m
 Copyright (C) 2001-2007 by:
 Department of Geography, University of Bonn
 http://www.giub.uni-bonn.de/deegree/
 lat/lon GmbH
 http://www.lat-lon.de
    
 This library is free software; you can redistribute it and/or
 modify it under the terms of the GNU Lesser General Public
 License as published by the Free Software Foundation; either
 version 2.1 of the License, or (at your option) any later version.
 This library 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
 Lesser General Public License for more details.
 You should have received a copy of the GNU Lesser General Public
 License along with this library; if not, write to the Free Software
 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 Contact:
    
 Andreas Poth
 lat/lon GmbH
 Aennchenstr. 19
 53177 Bonn
 Germany
 E-Mail: poth@lat-lon.de
    
 Prof. Dr. Klaus Greve
 Department of Geography
 University of Bonn
 Meckenheimer Allee 166
 53115 Bonn
 Germany
 E-Mail: greve@giub.uni-bonn.de
 ---------------------------------------------------------------------------*/

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

public class Main {
    /**
     * @param <T>
     * @param col
     *            may not contain null values
     * @param sep
     *            the separating string
     * @return a comma separated list of #toString values
     */
    public static <T> String collectionToString(Collection<T> col, String sep) {
        StringBuilder sb = new StringBuilder(512);

        Iterator<T> iter = col.iterator();

        while (iter.hasNext()) {
            sb.append(iter.next());
            if (iter.hasNext()) {
                sb.append(sep);
            }
        }

        return sb.toString();
    }
}

Related

1. collectionToString(Collection collection, String prefix)
2. collectionToString(Collection