Java List Create createArrayList()

Description

Returns a typed array list

License

Apache License

Declaration

public static <T> List<T> createArrayList() 

Method Source Code

//package com.java2s;
/*//ww w  .j a  v a  2  s  .c o m
 * Copyright [1999-2015] Wellcome Trust Sanger Institute and the EMBL-European Bioinformatics Institute
 * Copyright [2016-2018] EMBL-European Bioinformatics Institute
 * 
 * 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 static java.util.Arrays.asList;
import java.util.ArrayList;

import java.util.List;

public class Main {
    /**
     * Returns a typed array list
     */
    public static <T> List<T> createArrayList() {
        return new ArrayList<T>();
    }

    /**
     * Returns a typed array list with the given initial capacity
     */
    public static <T> List<T> createArrayList(int initialCapacity) {
        return new ArrayList<T>(initialCapacity);
    }

    /**
     * Creates a list and populates it with the contents of args
     * 
     * @param <T>
     *            Generic type of list
     * @param args
     *            Elements to go into the list
     * @return List of args typed accordingly
     */
    public static <T> List<T> createArrayList(T... args) {
        List<T> list = createArrayList();
        list.addAll(asList(args));
        return list;
    }
}

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