Java List Merge mergeList(List list1, List list2, List... rest)

Description

merge List

License

Open Source License

Declaration

public static <T> List<T> mergeList(List<? extends T> list1, List<? extends T> list2,
            List<? extends T>... rest) 

Method Source Code

//package com.java2s;
/*//from  w  w w  .  j  a  va 2s . c o  m
 * Copyright (C) 2012 Jan Pokorsky
 * 
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 * 
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 * 
 * You should have received a copy of the GNU General Public License
 * along with this program. If not, see <http://www.gnu.org/licenses/>.
 */

import java.util.ArrayList;

import java.util.List;

public class Main {
    public static <T> List<T> mergeList(List<? extends T> list1, List<? extends T> list2,
            List<? extends T>... rest) {
        int size = list1.size() + list2.size();
        for (List<? extends T> l : rest) {
            size += l.size();
        }
        List<T> result = new ArrayList<>(size);
        result.addAll(list1);
        result.addAll(list2);
        for (List<? extends T> l : rest) {
            result.addAll(l);
        }
        return result;
    }
}

Related

1. mergeFilterLists(List childFilters, List parentFilters)
2. mergeHierarchicalAndFlatDimensions( Collection> hierachicalDimensions, Collection> flatDimensions)
3. mergeIdAndStrings(Long accountId, Long workspaceId, List strs)
4. mergeIntegerResult(List result)
5. mergeList(List sourceList, List resultList, Set filterSet)
6. mergeList(List list1, List list2)
7. mergeList(List