Java List Create createList(Object[] values)

Description

create List

License

Apache License

Declaration

public static List createList(Object[] values) 

Method Source Code

//package com.java2s;
/*/*from ww w . j av a  2  s  .c o  m*/
* Copyright 2003-2013 the original author or authors.
*
* 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.Collections;
import java.util.Enumeration;

import java.util.List;

public class Main {
    public static List createList(Object[] values) {
        List answer = new ArrayList(values.length);
        answer.addAll(Arrays.asList(values));
        return answer;
    }

    public static List asList(Object value) {
        if (value == null) {
            return Collections.EMPTY_LIST;
        }
        if (value instanceof List) {
            return (List) value;
        }
        if (value.getClass().isArray()) {
            return Arrays.asList((Object[]) value);
        }
        if (value instanceof Enumeration) {
            List answer = new ArrayList();
            for (Enumeration e = (Enumeration) value; e.hasMoreElements();) {
                answer.add(e.nextElement());
            }
            return answer;
        }
        // lets assume its a collection of 1
        return Collections.singletonList(value);
    }
}

Related

1. createList(final T object)
2. createList(final T... elements)
3. createList(List list)
4. createList(Object... entries)
5. createList(Object... objs)
6. createList(String s)
7. createList(T value, int n)
8. createList(T... _entries)
9. createList(T... array)