Java List Remove removeEmptyValues(final List values)

Description

Remove empty (length zero when trimmed) values from a list.

License

Apache License

Declaration

public static List<String> removeEmptyValues(final List<String> values) 

Method Source Code

//package com.java2s;
/*//w w w  . j  a  v  a 2s  .c  o  m
 * Copyright 2012-2013 Hippo B.V. (http://www.onehippo.com)
 *
 * 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.ArrayList;
import java.util.Arrays;

import java.util.List;

public class Main {
    /**
     * Remove empty (length zero when trimmed) values from a list.
     */
    public static List<String> removeEmptyValues(final List<String> values) {

        if (values == null) {
            return null;
        }

        final List<String> result = new ArrayList<String>(values.size());
        for (String value : values) {
            if (!(value.trim().length() == 0)) {
                result.add(value);
            }
        }
        return result;
    }

    /**
     * Remove empty (length zero when trimmed) values from an array.
     */
    public static String[] removeEmptyValues(final String[] values) {

        if (values == null) {
            return null;
        }

        final List<String> result = removeEmptyValues(Arrays.asList(values));
        return result.toArray(new String[result.size()]);
    }
}

Related

1. removeEmptyLinesOnSides(List lines)
2. removeEmptyLists(Map map)
3. removeEmptyStringsFromList(List list)
4. removeEmptyStringsInList(List list)
5. removeEmptyTags(List tags)
6. removeFrom(List col, int from)
7. removeFrom(List list, T member)
8. removeFromArray(String[] fieldList, String exludeElement)
9. removeFromListByClass(final List list, final String className)