Java Collection Flatten flattenToString(Collection c)

Description

Creates a comma separated list of all values held in the given collection.

License

Apache License

Declaration

public static String flattenToString(Collection c) 

Method Source Code

//package com.java2s;
/*/*w w w .  ja  v  a 2 s .  c  om*/
 *  Licensed to the Apache Software Foundation (ASF) under one or more
 *  contributor license agreements.  See the NOTICE file distributed with
 *  this work for additional information regarding copyright ownership.
 *  The ASF licenses this file to You under the Apache License, Version 2.0
 *  (the "License"); you may not use this file except in compliance with
 *  the License.  You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *
 */

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

public class Main {
    /**
     * Creates a comma separated list of all values held in the given
     * collection.
     *
     * @since .NET Antlib 1.1
     */
    public static String flattenToString(Collection c) {
        return flattenToString(c, ",");
    }

    /**
     * Creates a list of all values held in the given collection
     * separated by the given separator.
     *
     * @since .NET Antlib 1.1
     */
    public static String flattenToString(Collection c, String sep) {
        Iterator iter = c.iterator();
        boolean first = true;
        StringBuffer sb = new StringBuffer();
        while (iter.hasNext()) {
            if (!first) {
                sb.append(sep);
            }
            sb.append(String.valueOf(iter.next()));
            first = false;
        }
        return sb.toString();
    }
}

Related

1. flattenCollection(Collection col)
2. flattenCollection(Collection array, String fmt, char separator)
3. flattenForest(Collection forest)
4. flattenNodeIds( Collection> nodesInMotif)
5. flattenStrings(Collection values)
6. flattenToString(Collection collection, String delimiter)