Java List Concatenate concatenate(List... lists)

Description

Concatenates multiple lists into one new list.

License

Open Source License

Parameter

Parameter	Description
lists	Multiple lists which will be concatenated.
T	Type of list values.

Return

A list containing all values from the given lists.

Declaration

@SafeVarargs
public static <T> List<T> concatenate(List<T>... lists) 

Method Source Code

//package com.java2s;
//License from project: Open Source License 

import java.util.*;

public class Main {
    /**/*from   ww w .jav a 2 s .  c o m*/
     * Concatenates multiple lists into one new list.
     *
     * @param lists Multiple lists which will be concatenated.
     * @param <T>   Type of list values.
     * @return A list containing all values from the given lists.
     */
    @SafeVarargs
    public static <T> List<T> concatenate(List<T>... lists) {
        if (lists == null)
            return new ArrayList<>();
        List<T> result = new ArrayList<>();
        for (List<T> l : lists) {
            if (l != null)
                result.addAll(l);
        }
        return result;
    }
}

Related

1. concatenate(List list)
2. concatenate(List strings)
3. concatenate(List xs)
4. concatenate(List a, List b)
5. concatenate(List contents, String separator)
6. concatenate(String[] selectors, List lessExtends)
7. concatenateFileContent(List fileContents)
8. ConcatenateInt(List arrays)
9. concatenateList(List values)