Java List Sort sortedList(List list)

Description

Returns a sorted version of the given list

License

Apache License

Declaration

static <T extends Comparable<T>> List<T> sortedList(List<T> list) 

Method Source Code

//package com.java2s;
/**//from   w w w. j  av  a 2s. 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.ArrayList;
import java.util.Collections;
import java.util.Comparator;

import java.util.List;

public class Main {
    /**
     * Returns a sorted version of the given list
     */
    static <T extends Comparable<T>> List<T> sortedList(List<T> list) {
        if (list == null || list.size() <= 1) {
            return list;
        }
        ArrayList<T> ret = new ArrayList<>();
        ret.addAll(list);
        Collections.sort(ret);
        return ret;
    }

    /**
     * Returns a sorted version of the given list, using the provided comparator
     */
    static <T> List<T> sortedList(List<T> list, Comparator<T> comp) {
        if (list == null || list.size() <= 1) {
            return list;
        }
        ArrayList<T> ret = new ArrayList<>();
        ret.addAll(list);
        Collections.sort(ret, comp);
        return ret;
    }
}

Related

1. sorted(List l, Comparator comparator)
2. sorted(List l)
3. sortedArray(List