Java Iterator concatLines(Iterator lineIterator)

Description

Concatenates several lines into one string.

License

Apache License

Parameter

Parameter	Description
lineIterator	Iterator of String objects

Return

The result string or null

Declaration

public static String concatLines(Iterator lineIterator) 

Method Source Code

//package com.java2s;
/*/*ww w  . j av  a  2 s.  c om*/
 *   Copyright 2007 skynamics AG
 *
 *   Licensed 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.Iterator;

public class Main {
    /**
     * Concatenates several lines into one string.
     * The lines are separated by a '\n' character.
     *
     * @param lineIterator Iterator of String objects
     * @return The result string or null
     */
    public static String concatLines(Iterator lineIterator) {
        StringBuffer sb = new StringBuffer();
        while (lineIterator.hasNext()) {
            String line = (String) lineIterator.next();
            if (line != null) {
                if (sb.length() != 0)
                    sb.append('\n');
                sb.append(line);
            }
        }
        return sb.length() != 0 ? sb.toString() : null;
    }
}

Related

1. cast(Iterator p)
2. closeIterator(Iterator iterator)
3. compareRanges(final Iterator i, final Iterator j)
4. concatinateElements(Iterator it)
5. concatIterators(final Iterator... iterators)
6. contains(final Iterator iter, final E item)
7. contains(Iterator it, T o)
8. contains(Iterator iterator, Object element)
9. contains(Iterator iterator, String value)