Java List Permutate permute(List s1, List s2)

Description

permute

License

Apache License

Declaration

public static List<List> permute(List s1, List s2) 

Method Source Code

//package com.java2s;
/**************************************************************************
* Copyright 2008 Jules White                                              *
*                                                                         *
* 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.Collection;
import java.util.List;

public class Main {
    public static List<List> permute(List s1, List s2) {
        List result = new ArrayList<List>(s1.size() * s2.size());
        for (int i = 0; i < s1.size(); i++) {
            Object o1 = s1.get(i);

            for (int j = 0; j < s2.size(); j++) {
                Object o2 = s2.get(j);
                ArrayList item = new ArrayList();

                if (o1 instanceof Collection)
                    item.addAll((Collection) o1);
                else
                    item.add(o1);//from w w w  . ja va  2 s.  c o m
            }
        }
        return result;
    }
}

Related

1. permutation(List list1, List list2, String token)
2. permutation(String prefix, String s, List list)
3. permutations(List list)
4. permutations(List listings)
5. permutations(Map> parameterValues)
6. permute(List arr)
7. permute(List list1)
8. permute(List list, int index, List> result)
9. permute(T[] arr, List p)