Main.java Source code

Introduction

Here is the source code for Main.java

Source

//package com.java2s;
/*-------------------------------------------------------------------------+
 |                                                                          |
 | Copyright 2005-2011 The ConQAT Project                                   |
 |                                                                          |
 | 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.Collections;

import java.util.List;

public class Main {
    /** Recursively creates permutations. */
    private static <T> void permute(List<T> list, int index, List<List<T>> result) {
        for (int i = index; i < list.size(); i++) {
            Collections.swap(list, i, index);
            permute(list, index + 1, result);
            Collections.swap(list, index, i);
        }
        if (index == list.size() - 1) {
            result.add(new ArrayList<T>(list));
        }
    }
}